The Ultimate Invisible Ink Activity Book – Klutz

Uncover hidden messages, solve mysteries, and reveal secret images with The Ultimate Invisible Ink Activity Book from Klutz. Packed with exciting puzzles and activities, this interactive book comes with a special UV invisible ink pen that lets kids write, reveal, and discover surprises on every page. Perfect for young detectives and curious minds, this book combines creativity, problem-solving, and fun in one engaging package.

Product Features:

• Recommended for ages 6 and up

• Includes a 64-page interactive activity book filled with secret notes and hidden images

• Comes with a specialty UV invisible ink pen for writing and revealing hidden messages

• Fun activities include solving the mystery of the stolen rainbow cupcake, drawing constellations in the stars, and read-and-reveal jokes

• Compact size: measures 7" x 9" — great for travel or on-the-go fun

• Encourages problem-solving, creativity, and imaginative play

• Perfect gift for kids ages 6–8 who love mysteries, puzzles, and interactive books

Why Kids Love It:
From silly jokes to secret messages, this book keeps kids entertained as they unlock hidden surprises on every page. The invisible ink pen makes each activity feel like a real-life detective adventure.