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

While investigating a brutal attack on Gregor, a seemingly single man, DS Joanna Harper discovers that her estranged daughter Ruby is somehow involved in this case that is steeped in Celtic mythology.

Orphan Corinna disguises herself as a boy to pose as a Folk Keeper, one who keeps the Evil Folk at bay, and discovers her heritage as a seal maiden when she is taken to live with a wealthy family in their manor by the sea.

"Finn's friend Sheila, a magical selkie and shape changer, dives into the sea to rescue him from a storm, but in doing so she gives up her life as a girl and returns to being a seal"--Unedited summary from book.

During the summer of 1987, Allie Jo, whose family runs an antebellum Florida hotel, meets Chase, who is staying there with his father, and they become friends when they discover a mysterious teenager hiding on the grounds of the hotel.

Sequel to the Edgar-nominated The Edge of Nowhere, from #1 New York Times bestselling author Elizabeth George

A mysterious girl who won’t speak; a coal black seal named Nera that returns to the same place every year; a bitter feud of unknown origin—strange things are happening on Whidbey Island, and Becca King, is drawn into the maelstrom of events. But Becca has her own secrets to hide....

"Jane is incredibly plain. Everyone says so: her parents, the villagers, and her horrible cousin who kicks her out of her own house. Determined to get some semblance of independence, Jane prepares to propose to the princely Peter, who might just say yes to get away from his father. It's a good plan! Or it would've been, if he wasn't kidnapped by a mermaid. With her last shot at happiness lost in the deep blue sea, Jane must venture to the world underwater...

Ben, a ten-year-old Irish boy, discovers his mute sister Saoirse, whom he blames for the apparent death of his mother, is a selkie who has to free faerie creatures from the Celtic goddess Macha.

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.