This book investigates the enduring fascination with cryptids, creatures whose existence is suggested but not proven by scientific evidence. Author Kelly Milner Halls, known for her work in children's non-fiction, presents a collection of tales and purported evidence surrounding various cryptids. The book explores the cultural impact and the nature of belief in these mysterious beings, drawing on folklore, eyewitness accounts, and speculative theories.

This book is likely to be appreciated by young readers and general audiences interested in mysteries and folklore. The presentation of cryptid accounts, combined with visual elements, suggests an engaging and accessible approach to the subject matter. The focus on storytelling and purported evidence positions it as an introductory text for those curious about the unexplained.