One Invisible Ink Yes & Know More Mr. Mystery: Secret Agent Spy & Game Book. For Armchair Detectives of All Ages.
Be a super detective! Use your special pen to uncover the truth and solve the mysteries. Here are just some of the games you will find inside this book, decode the cryptograms, decipher Krazygrams, and nab the crook in jailbreak. One of our all time best sellers! Collect all 4!
Order one as a special gift for your Secret Agent Birthday Star or order enough for the entire party to use as an activity at the party or for party favors! Children love to watch the images appear with the magic pen!