More than 150 perplexing puzzles for kids 9 to 12 to build problem-solving skills—and boost brain power! Do you love puzzles? Welcome to The Ultimate Puzzle Book for Kids—the most comprehensive puzzle book for kids ages 9-12, featuring tons of fun and challenging activities. This awesome assortment of brain-stretching games is perfect for friends and families on long car trips, summer vacation, and even just after-school downtime. From complex crosswords to crazy mazes, this complete puzzle book for kids ages 9-12 delivers hours of mind-bending entertainment for budding brainiacs. You can play alone or play with a friend in the games-for-two section. There's even an answer key in the back of the book if you get stuck! This outstanding puzzle book for kids ages 9-12 includes: 150+ Tricky puzzles—Discover hours of fun with this massive puzzle book for kids ages 9-12. Vexing variety—From easy to hard, these puzzles get tougher as you go, and include math and logic games, crosswords, maze