PUT THE PHONE DOWN. PICK UP THE CLUES.
This isn't another book you'll finish and forget.
Most books are read once, then left on a shelf. The Killer Isn't June is different. Work through 43,000 names using 17 carefully constructed clues. Cross out every name that doesn't fit, narrow down the pages, follow the patterns, and keep going until only one killer remains.
That's why thousands of readers don't just read this book, they solve it. Highlighter in hand. Names crossed out across the pages. Notes everywhere. Friends comparing answers. One clue leading straight into the next.
You're not following a detective's story. You're solving the ultimate elimination puzzle yourself.
⭐⭐⭐⭐⭐ Rated 4.2/5 by thousands of mystery lovers
"I thought I knew who did it. I was completely wrong."
Every time you think you've found the killer, the next clue eliminates another name.
Thousands of names disappear. The possible pages get narrower. Letter patterns, page numbers, nearby names, and chapter details all bring you closer to one surviving answer.
This isn't a book you simply read. It's an elimination puzzle you actively solve, keeping your brain engaged as you work through all 17 clues.
When only one name remains, there's just one question you'll want to ask someone else:
"Can you solve it?" 👇
THE KILLER ISN'T JUNE
THE KILLER ISN'T JUNE
The Killer Isn't Who You Think.
Question Everything. Trust No One.
The Truth Has Been There All Along.
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THE KILLER ISN'T JUNE
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"Bought it because I was sick of scrolling my phone every night and honestly it worked. It kind of turns the chaos in your brain off? You just sit there with a pen crossing off names and it's weirdly relaxing. My teen stole it off me so now I have to order another one"
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"Bought it because I was sick of scrolling my phone every night and honestly it worked. It kind of turns the chaos in your brain off? You just sit there with a pen crossing off names and it's weirdly relaxing. My teen stole it off me so now I have to order another one"
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"Warning! Addictive. I sat down 'for five minutes' and lost two hours. It's hard but not annoying-hard, and honestly so satisfying when a clue clicks and you get to cross off a whole chunk of names. Wasn't happy til I solved it. Highly recommend! 😅"
WHY IS THIS BOOK SO ADDICTIVE?
WHY IS THIS BOOK SO ADDICTIVE?
Unlike a traditional mystery novel where you follow a detective, The Killer Isn't June makes you the investigation. The book is a ledger of 43,000 names, and one of them is the killer. Armed with 17 clues, you'll cross off suspects by the thousands, watching the field narrow with every deduction. You'll question your logic, go back over pages you've already worked, and double-check names you crossed off hours ago. It's the kind of book that's hard to put down, because every clue brings you one step closer to the only name that survives them all.Unlike traditional mystery novels where you simply follow the story, The Killer Isn't June makes you part of the investigation. Every clue, suspect, and piece of evidence could be the key to solving the case. As the mystery unfolds, you'll find yourself constantly questioning your theories, revisiting clues, and searching for details you may have missed. It's the kind of book that's difficult to put down because every page brings you one step closer to the truth.
CAN YOU REALLY SOLVE THE MYSTERY YOURSELF?
CAN YOU REALLY SOLVE THE MYSTERY YOURSELF?
Yes. Every clue you need is printed in the book, and every one of them is solvable with logic alone. There are no lucky guesses, no tricks, and no impossible leaps. Just deduction. Each clue eliminates suspects, and if you apply every clue correctly, exactly one name will survive. There's no answer printed in the book to spoil it, either. When you think you've found the killer, you check your answer on our verification site and find out if you're right. 🔎📖
WHAT BOOKS DO WE SELL?
WHAT BOOKS DO WE SELL?
Corex Books publishes logic elimination mysteries. Our current authors are Charlotte Brooke (The Killer Isn't June) and Lana Kaper (The Victim Isn't Dead). Every book we sell is listed on this site, so if it's not here, it's not ours.
DO I NEED A DETECTIVE CASEBOOK?
DO I NEED A DETECTIVE CASEBOOK?
You can absolutely solve the case without the Casebook, plenty of readers do. It's simply there to make the solve smoother and help you stay organized across your sittings.
It includes space to work through each clue, track which chapters and pages you've cleared, and log the names still in play as the field narrows. Instead of flicking back through the book trying to remember where you got up to, you'll have your whole investigation in one place.
It's completely optional, but if you like working methodically, the Casebook turns a big solve into a satisfying, organized one.
Shipping and Returns
Shipping and Returns
SHIPPING POLICY & REFUND POLICY
We process orders within 1–2 business days and ship within 7-10 business days (shipping times may vary for international orders). If you’re not completely satisfied with COREX, you can return it within 30 days of delivery for a refund. Products must be unopened and in their original packaging, and return shipping is the customer’s responsibility unless the item arrived damaged or incorrect.
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About the Author
Charlotte Brooke has always been drawn to puzzles that reward patience: the crossword you can't leave unfinished, the logic grid that finally clicks, the mystery you solve one step ahead of the detective. After years of loving classic whodunits, she wanted to create something different: a mystery with no detective at all, where the reader does every piece of the solving. The Killer Isn't June challenges you to work through the clues, eliminate suspects by the thousands, and narrow 43,000 names down to one. Every clue is designed to reward careful reading, careful logic, and the patience to see it through.
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
"I bought this on a whim and ended up finishing it in two days. The mystery is incredibly well thought out, and the clues are hidden in a way that rewards careful readers. There were multiple moments where I felt certain I had cracked the case, only to discover I had completely overlooked something important. The twists were smart rather than shocking for the sake of being shocking, which made the ending even more satisfying."
"I do a lot of puzzle books and this is genuinely unlike any I've ever seen. It's not over in a couple of minutes like a sudoku, it actually makes you think and concentrate. A few clues in you start second-guessing everything and going back over names you already crossed off. In a good way lol"
"I've read dozens of murder mysteries, but most of them simply tell you a story and reveal the answer at the end. This book was different. It constantly encouraged me to pay attention, question my assumptions, and connect clues for myself. The mystery was clever, the pacing was excellent, and the final reveal was worth every page. I immediately wanted to discuss my theories with friends after finishing it."
Why Read This Book?
Most mysteries tell you a story. The Killer Isn't June challenges you to solve one.
Designed for curious minds who love puzzles and hidden clues, you'll examine the evidence, eliminate suspects, and connect the dots as you race to prove June's innocence.
Every clue brings you closer to the truth, but only the most observant readers will uncover the real killer before the final reveal.
The clues are waiting. Can you solve the case? 🔎🕵️📖
What People Like You Are Saying About Us!
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"Didn't expect to be sitting at my nail appointment trying to work out who to cross off next 😂 I honestly can't put this book down. Every time I think I've figured it out, I notice something I missed before. It's such a fun change from just scrolling on my phone."
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"Bought this to work on over coffee and it was the best decision. I thought I'd figured out the killer within the first few clues, but I couldn't have been more wrong 😂 It's the first mystery book that's actually made me stop, think, and piece everything together myself. Already looking forward to my next coffee so I can keep solving it."
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"This wasn't even on my reading list. I just spotted it while browsing and thought it looked interesting. Best impulse buy I've made in ages. Such a fun concept and completely different from a normal mystery."
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"This is my new quiet time thing. Cup of tea, highlighter, cross off some names. It's oddly peaceful, almost zen? But then a clue lands and suddenly you're a detective and it's 11pm. A really nice way to spend an evening that isn't a screen"
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"Bought two so my friend and I could do it at the same time and it was the best decision. We compared notes all week like actual detectives. Perfect if you love a whodunnit but want to DO it instead of just reading it"
Frequently Asked Questions (FAQ)
HOW IS THIS BOOK DIFFERENT FROM A REGULAR MYSTERY NOVEL?
HOW IS THIS BOOK DIFFERENT FROM A REGULAR MYSTERY NOVEL?
Unlike a traditional mystery where you follow the story, The Killer Isn't June puts you in the detective's seat. You'll work through 17 clues, eliminate suspects from a field of 43,000 names, and narrow the case down yourself, one deduction at a time. Every clue matters, and every name you cross off is progress you made, which is what makes the solve so rewarding.
CAN I ACTUALLY SOLVE THE MYSTERY BEFORE THE END?
CAN I ACTUALLY SOLVE THE MYSTERY BEFORE THE END?
Yes. Every clue you need is printed right there in the book, and together they give you everything required to find the killer. There are no impossible twists and no hidden information. Just logic, deduction, and the patience to apply each clue correctly. Do that, and exactly one name survives.
WHO IS THIS BOOK FOR?
WHO IS THIS BOOK FOR?
This book is perfect for fans of murder mysteries, detective stories, true crime, puzzles, and escape rooms. Whether you're an experienced mystery reader or simply enjoy a good challenge, you'll find yourself fully immersed in the investigation from beginning to end.
WHY DO READERS LOVE THIS BOOK?
WHY DO READERS LOVE THIS BOOK?
Readers love being the one doing the solving instead of just reading about it. The combination of a huge field of suspects, clues that reward careful logic, and the steady satisfaction of watching thousands of names become one creates an experience people describe as genuinely addictive. Most can't leave it unsolved once they've started.
IS THE KILLER ISN'T JUNE CONNECTED TO ANY OTHER MURDER MYSTERY PUZZLE BOOKS?
IS THE KILLER ISN'T JUNE CONNECTED TO ANY OTHER MURDER MYSTERY PUZZLE BOOKS?
No. The Killer Isn't June has never had any association with any other title, author, or publisher. It was independently designed and built from the ground up by Charlotte Brooke, and it exists as its own series.
IS THIS A RIP-OFF OF A BOOK I'VE SEEN ON TIKTOK/FACEBOOK/AMAZON?
IS THIS A RIP-OFF OF A BOOK I'VE SEEN ON TIKTOK/FACEBOOK/AMAZON?
No, this is a different book entirely. There are a few murder mystery puzzle books out there now, but The Killer Isn't June was designed and built from scratch by Charlotte Brooke. Every one of the 43,000 names and 17 clues was placed deliberately so the puzzle has exactly one provable answer, and you can verify yours at corexbooksolutions.com.
WHAT AGE IS THIS BOOK SUITABLE FOR?
WHAT AGE IS THIS BOOK SUITABLE FOR?
The Killer Isn't June is recommended for readers aged 13 and over. It features a murder-mystery theme with no graphic violence or adult content, and is designed for teenagers and adults who enjoy clues, logic, and elimination puzzles.