The perfect gift for anyone who enjoys crime thrillers, murder mysteries or cold cases - this mixed puzzle book for adults contains over 90 crime-themed visual, code, logic, number and word puzzles to solve! 8 puzzling cases will gradually help you uncover an overall criminal mastermind who is pulling the strings in the background in a dramatic final 9th case. Can you crack all the clues and help Detective Orion Hawke catch the culprits?