50,000 suspects. 20 clues. One killer.
50,000 people came to Wavelength Festival.
One of them didn't leave.
At 20:47, minutes before the headline act, a tour manager is found dead in a restricted area behind the main stage. Within four minutes, security seals every exit.
Nobody leaves. Everyone is a suspect.
Every person inside the festival fence is printed in this book — 50,000 individual names, numbered 1 to 50,000. Every single one different.
One of them is the killer.
And you have twenty clues to find them.
One enormous murder mystery
A gate scan. A torn wristband. A charging locker receipt. A payment made at 20:19.
Each piece of evidence tells you something about who could — and couldn't — have committed the murder.
Work through the evidence. Compare the records. Cross suspects from the register.
Some clues eliminate thousands. Others narrow one crucial detail. And some won't reveal their full importance until much later in the investigation.
No single clue solves the murder.
Only by following the complete chain of evidence — clue by clue, page by page, name by name — can the killer be identified.
After all twenty clues have been applied, only one name remains.
50,000 suspects. Exactly one solution.
With 50,000 suspects, there is no room for an accidental second answer.
Every clue was checked by computer against all 50,000 records before the book went to press. The complete chain of twenty clues leads to exactly one person.
No guessing. No arbitrary reveal. No second solution.
Everything you need to identify the killer is already in your hands.
Inside
The complete 50,000-name suspect register
20 interconnected clues forming one continuous investigation
Festival site map, incident report and complete case file
Evidence from gate scans, wristbands, purchases, locations, times and festival records
A fully worked solution showing how all twenty clues converge
A final deduction that introduces no new evidence
This isn't a collection of twenty unrelated puzzles.
It's one enormous murder mystery.
Made for mystery lovers, logic-puzzle addicts and armchair detectives. Challenging for adults, accessible to older teens, and completely non-graphic.
Bring a pencil. You're going to need it.


















Reviews
This is a great book for people that pay attention to details. Go through the list and single out the killer. It is a lot of fun solving the crime.
One Name Remains: The Festival by M. Ward is one of the more inventive concepts I've come across in this format. The premise: a music festival called Wavelength, a murder backstage, and a "suspect register" listing all 50,000 attendees by name, entry gate, wristband color, and campsite zone. Twenty clues follow, each one a piece of forensic evidence that lets you physically cross out entire pages of the register — a locked door, a torn wristband, a footprint — until, improbably, only one name is left standing. What makes it work is that the elimination logic never feels arbitrary. Every clue is grounded in a specific, plausible detail of how a real festival operates — payment systems, charging stations, sealed stage zones — and the deductions build on each other cleanly, the way a real investigation would. The writing in the clue sections is genuinely atmospheric, too, with small narrative touches that let each elimination land as a moment rather than just a mechanical cut. It's the kind of puzzle that rewards a careful, attentive reader rather than punishing a careless one. The production leans into the concept nicely: a gritty, black-and-white festival-poster cover, a stark and confident clue-page layout, and a register that's dense but genuinely easy to scan and cross out by hand. The one thing worth setting expectations for: the register itself is 200 pages of names and codes, and for most of the book the "solving" happens in broad strokes — whole gates or zones eliminated at once — rather than name-by-name scrutiny. That's clearly by design, and the back stretch of the investigation does turn genuinely granular and satisfying, but readers expecting to pore over every page individually should know the real texture is concentrated in the final clues, with the register functioning more as a prop to physically dismantle than as something to read start to finish. Altogether, this is a smart, well-plotted piece of interactive mystery writing — the kind of book that could genuinely convert someone who thought "logic puzzle" meant something drier than this.
This was such an addicting puzzle. 50k suspects, 20 clues, and hours of fun. Once I started, I couldn't put it down until I was finished. Minutes before the headline act is set to perform, their tour manager is found dead. It's up to you to figure out who of the 50k people inside the festival is the killer. Names are given based on the time of day they entered, what gate they came through, the type of wristband they received, and which campsite they were assigned to.
This was such an addicting puzzle. 50k suspects, 20 clues, and hours of fun. Once I started, I couldn't put it down until I was finished. Minutes before the headline act is set to perform, their tour manager is found dead. It's up to you to figure out who of the 50k people inside the festival is the killer. Names are given based on the time of day they entered, what gate they came through, the type of wristband they received, and which campsite they were assigned to.
This was a fun whodunit type book with a LOT of characters. When I first started I kept thinking how are we going to dwindle these names(50,000) down! But they made it super easy, and super fun to do. At the end of each exercise very easy to start crossing out names with all the clues they give you. Fun little exercise would recommend giving it a try.