The Silver Squad are called in to help find the missing Sparkle Stone in this innovative activity book. Use the magic pen to reveal hidden ink on the pages. Solve the clues, search for hidden symbols and crack the codes to help the unicorn squad solve the mystery. With surprising twists and turns, this activity book is perfect for junior detectives and unicorn-lovers alike! INNOVATIVE MAGIC INK ACTIVITY BOOK, INCLUDING A MAGIC PEN AND CARD PRESS-OUTS