Blue's Clues Coloring Book Set ~ Mess-Free Blues Clues Imagine Ink Book with Magic Pen, Play Pack with Fun-Size Activity Book, Crayons, Stickers (Blues Clues Party Favors). The set features Blue's Clues in a 24-page Magic Ink book with 1 mess-free Imagine Ink pen, and a Blue's Clues play pack with mini coloring book, Blue's Clues stickers and crayons. The Blues Clues Imagine Ink picture book uses an invisible ink pen to reveal a rainbow of colors as you draw on the page. Does not visibly mark most other items. Perfect as Blues Clues party supplies and party favors. This set includes a bonus Kitties bookmark and Ugly Dolls sticker pack! Great fun for any little Blue's Clues fan. Officially licensed Blue's Clues and You! toys and games products -- for girls and boys alike! Blue's Clues Coloring Book Set ~ Mess-Free Blues Clues Imagine Ink Book with Magic Pen, Play Pack with Fun-Size Activity Book, Crayons, Stickers (Blues Clues Party Favors). The set features Blue's Clues in a 24-page Magic Ink book with 1 mess-free Imagine Ink pen, and a Blue's Clues play pack with mini coloring book, Blue's Clues stickers and crayons. The Blues Clues Imagine Ink picture book uses an invisible ink pen to reveal a rainbow of colors as you draw on the page. Does not visibly mark most other items. Perfect as Blues Clues party supplies and party favors. This set includes a bonus Kitties bookmark and Ugly Dolls sticker pack! Great fun for any little Blue's Clues fan. Officially licensed Blue's Clues and You! toys and games products -- for girls and boys alike!