Invisible Ink: Highlights Hidden Pictures™ Under-the-Sea Puzzles

The special pen reveals the invisibly printed answers. Find hidden objects with fish friends and other silly sea creatures in these fun and engaging Highlights Hidden Pictures™ puzzles. 

Mini size perfect for slipping into a backpack or car pocket. 6" x 3 1/2"  Printed in the USA!

32 pages of fun puzzles for ages 5+ -- includes special pen

Great for party favors!