On his eleventh birthday, schoolboy Magnus Fin found out that he was half selkie - part human, part seal. Although he looks like a boy and lives on land, he can breathe underwater. When Magnus Fin discovers his initials scratched into the rocks by the shore and finds dead seals washed up on the beach, he knows his selkie family needs his help, and he dives down beneath the waves to find out more. The great seal sickness has struck and his grandmother...

Helen and her fabled-beast friends help Rona the selkie in a Storm Singer competition. Rona wins by singing up an incredible storm, but part of the prize is to represent the selkies in a much bigger contest. Rona must compete in three gruelling challenges against a mermaid and a blue loon, and carry an important message between the deep sea powers, which will stop them going to war. She desperately needs the help of Helen and her friends. But a giant...

Jack and Annie travel in their magic tree house to the land of the mystical selkies to seek a magical sword for Merlin.

Fiona embarks on a journey to find her mother and unlock her selkie magic.

Selkie Bay is a place where the old legends seem very near, and eleven-year-old Cordelia believes that her secretive mother is a selkie who has returned to the sea--a belief that offers some hope as she struggles to care for her two younger sisters and help her scientist father makes ends meet in their home by the sea.

When fifteen-year-old Peer Ulfsson witnesses the disappearance of his neighbor's wife, rumored to be a seal-woman, he must help protect the baby she leaves behind from trolls, a witch, and other creatures.

A poor Welsh fisherman bears two children with a selkie - half-woman, half-seal - before she returns to the sea with her own people. The villagers hear a strangers' stories of better far off lands where life could be easier and the two children go to their mother for help.

"When a selkie appears in the San Francisco bay, Sam London and the guardian Tashi are summoned by Dr. Vance Vantana of the Department of Mythical Wildlife to help track the creature down. Except unbeknownst to them, other forces are at work and the secret that mythical creatures exist and live amongst humans is in even bigger danger than ever before"--