Dora the Explorer 3in1 Invisible Ink Magic Pen Painting and Sticker Book Play with your favorite Dora the Explorer characters in this 3in1 activity book which include Magic Pen Painting, Invisible Ink and Sticker Puzzles. The Special Pen reveals the invisibly printed pictures, answers to games and produces a rainbow of colors instantly. Also unscramble the stickers to create a surprise picture. Your child is sure to enjoy all 3 fun activities with just one book. Book Includes:  Special Pen  24 pages of fun  2 jumbled stickers puzzles Ages 3+ Book Size: 5 1/2" x 8 1/8"