Give amateur detectives a brain workout with this ultra-challenging puzzle kit for ages 7 and up!It's no secret: super solvers will love this challenging puzzle kit. Solve a variety of unique, brain-boosting puzzles--including Hidden Pictures puzzles, codes and logic puzzles--using the included UV pen with UV light, red-reveal glasses and 25 colorful stickers. With 64 pages of super-sleuthing, screen-free fun, this puzzle kit is filled with next-level puzzle challenges. Puzzlers will use the stickers, red-reveal decoder glasses and UV pen with UV light to crack codes, tackle brainteasers, find hidden objects and more, solve puzzles within puzzles and more! Crafted by the puzzle people at Highlights, brainPLAY puzzle books are perfect for: kids ages 7+ who love Highlights puzzles and are ready for more of a challengegrown-ups who want to keep kids engaged, boost academic skills, and build self-confidencekids-at-heart, teens and adults who can't get enough logic puzzles and love brainteasers with fun visualsFor over 75 years, Highlights has inspired children to become Curious, Creative, Caring and Confident individuals. With products that encourage thinking, creativity and self-expression, Highlights helps kids build essential skills, all while having fun.