This book is crammed with super secret-keeping stuff: note-folding instructions, secret languages, codes, signs and symbols, and the silliest emoticons ever. To top it off, any note you write with the indivisible ink pen looks completely blank -- until you shine the build-in UV light on it and your message glows. Comes With: 1 UV ink pen, 60-page notepad - Create wonderful things - Be good - Have fun