Problem-solve under pressure and spot the imposter in time. An immersive puzzle book experience.

Step inside the book and get ready to start a compelling, solve-as-you-go adventure. Put your investigative skills to the test and use your intuition to eliminate the suspects, piece together the clues and hunt down the imposter, from puzzle to puzzle.

Bestselling author Dr Gareth Moore and Laura Jayne Ayres will put your logic and reasoning to the test and keep you looking over your shoulder as you solve the puzzles. The decisions you make will decide what happens next - but have you made the right choices? Be prepared to revisit any evidence you may have missed the first time...

The game is afoot: do you dare to step inside the book?