Use science to keep your secrets safe! This crafty science lab comes with two cases (one for each friend) and contains everything girls need to hide messages in plain sight using UV light pens, filters, encoders, message masks and secret folds. Kids can create their own secret codes, concoct invisible inks, practice secret handoff techniques and more! The 24-page book in the kit includes activity instructions and science information as well as facts about how secret messages have been used throughout history.

Age Recommendation: Ages 8 and up