This event is in the "All Ages" group. Code Cracker Challenge All Day All Ages This event is in the "All Ages" group. Sep 19 2025 Fri Code Cracker Challenge All Day Library Branch: Grande Prairie Public Library Room: Ask Desk Age Group: All Ages Program Type: Hobbies & Games About This Program: Are you ready for a brain teaser? Drop by the library to pick up an encryption puzzle! Each Code Cracker Challenge contains an encoded message, book recommendations, and hints to help you decipher the puzzle.