Books by Ridley Marsh
For grown-ups
ALIBI FILES
Murder mystery logic puzzles. Thousands of suspects, eighteen clues, one killer.
Open the case files →Filing a tip, checking a clue or reading the FAQs? It's all inside.
For kids 8 to 12
Sleuth Street
Mystery puzzle books where you solve the case. Clues, codes, suspects and a dog named Waffles.
Let's go, detective! →Grown-ups with a password from the book: the free bonus case is inside.