Most Popular Books
- Cold Case Codes: 50 Murder Mystery Sudoku Logic Puzzles for Adults: Solve the Grid, Decode the Archive, Find the Killer (The Red Case File: Murder Mystery Sudoku)
- Locked Rooms: 50 Murder Mystery Sudoku Logic Puzzles for Adults: Solve the Grid, Trace the Access, Find the Killer (The Red Case File: Murder Mystery Sudoku)
- Alibis & Lies: 50 Murder Mystery Sudoku Logic Puzzles for Adults: Solve the Grid, Test the Alibi, Find the Killer (The Red Case File: Murder Mystery Sudoku)
- The Red Case File: The Last Take: An Interconnected Evidence Mystery. 312 Names on the Call Sheet, One Killer. Can You Prove Who?
