Explore the fascinating world of sea monsters with this exciting guide to 50 aquatic cryptids by the creators of the bestselling Cryptid Creatures: A Field Guide.

Cryptid Sea Monsters profiles 50 different aquatic cryptid mysteries around the world. Aspiring scientific explorers will discover that many ancient sea monsters turned out to be real creatures—such as the oarfish, a real creature that inspired our legends about dragons—and learn about other cryptids that might one day be proven to be real.

Each cryptid has a reality rating of 1 to 6, indicating whether it’s more of a hoax or something that has been discovered and recognised by science.

This page-turning guide will inspire curious readers to investigate further on their own and understand the relationship between science and myth.