When studying mysterious creatures called cryptids, the line between fact and fable sometimes blurs. Believable finds—like the Piltdown Man and the Cardiff Giant—may turn out to be clever hoaxes. And impossible fictions—like a 44-foot squid and a living "missing link", the coelacanth—may be found swimming today's oceans.

Kelly Milner Halls, Rick Spears, and Roxyanne Young take kids and their parents on an imaginative and fun-filled romp throught the history of cryptids.