Solve 24 brain-busting mystery cases, secret codes, and logic puzzles with this ultimate detective quiz book for young sleuths and solvers!Put on your thinking cap with Case Closed! The Ultimate Brain-Busting Quiz Book for Sleuths & Solvers, an engaging 31-page printable activity book packed with beginner, intermediate, and expert detective challenges. Designed strictly with no animals and no scary content, this print-ready resource focuses purely on smart puzzles, math locks, word scrambles, and ciphers.