A-C Hinkler Arts and Crafts | The Secret Invisible Ink Activity Book

Inside This Sensational Activity Book, Little Sleuths Will Find Everything They Need To Graduate Secret-Training Camp! Including Creating A Code Name, Writing Coded Messages, Solving Crimes Through Clues, Finding Hidden Treasure And So Much More. Best Of All, Secret Elements Are Revealed Throughout The Book With The Sensational Uv-Light Pen, And Agents Can Store Their Own Secret Messages With The Special Uv Pen Ink (Revealing Them When They Want To With The Torch End).

• Dual-Ended Pen: One End Has A Regular Pen, And The Other End Has Invisible Ink That Is Revealed With The Black-Light Torch Within The Pen Lid.
• 96-Page Activity Book