The Ultimate Invisible Ink Activity Book

The Ultimate Invisible Ink Activity Book from KlutzRecommended for ages 6 years and olderIncludes a 64-page book that has secret notes and hidden images printed on every page, plus a specialty UV invisible ink pen to write, reveal, and uncover the hidden notes and imagesSolve the mystery of the stolen rainbow cupcake, draw constellations in the stars, and laugh yourself silly with read-and-reveal jokesMeasures 7" x 9"