Due to increased order volume and the impact of COVID-19, it may take longer than usual for your order to arrive


Your Cart is Empty


More: Mr. Mystery - Invisible Ink Secret Agent Spy & Game Book

Use your special invisible ink pen to uncover secrets and solve mysteries. With the Mr. Mystery secret agent books, you'll decode cryptograms, decipher krazygrams, and reveal hidden spies with your secret pen. 

  • Includes invisible ink pen
  • 48 pages of activities
  • Recommended for ages 7+
  • Measures: 6" x 11"