The original invisible activity series, Yes & Know questions to ponder and solve!
Children will be amazed as the invisible ink pen instantly reveals the Yes & Know answers like magic for many hours of fun and entertainment!
With 32 pages of codes to crack and trivia to solve, Yes & Know includes classic best-loved activities: Battleship, Bull's Eye, Tic-Tac-Toe, Hangman, Line-Up, and Bingo. This exciting and much-loved format is packed with amazing facts to test the knowledge of all ages!
Ages 8+