Thames & Kosmos - Spy Labs Invisible Ink Pen and UV Light butterfly and a sparkling waterfall cascading

and a sparkling waterfall cascading through the forest

flutter gracefully up and down with the motion of your hand

The Advent calendar is an EXIT® game and an adventure story in one: To take part in the intergalactic race

Made from 100% natural rubber and hand-painted with natural pigments

Packaging: 7" L x 2" W x 4" H

Thames & Kosmos - Spy Labs Invisible Ink Pen and UV Light butterfly and a sparkling waterfall cascadingAs a detective, you always need the right tools when you are on the hunt for evidence or reading secret messages. Ultraviolet light helps you uncover many hidden clues. Exchange top secret info with your friends and fellow agents using this high tech device. The pen uses a special ink that only becomes visible under ultraviolet light, like the one emitted by the flashlight on its opposite end. You can also use the UV light to find other objects and