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

Fledgling Water Master Mari Prothero rebels against her expected arranged marriage at age eighteen until she learns that her family's magical heritage is actually protected by these unions.

Selkie is a wordless picture book that tells the tale of a tender friendship between two unlikely beings. When a young fisherman falls into the sea, he is rescued by a playful seal. One transformation later, a new friendship is formed. This wordless story will evoke readers' imaginations and allow them to complete the narrative themselves.

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.

Aran has never truly fit in with his selkie clan. He was born in his human form, without a pelt to transform him into a sleek, strong seal. Each day he waits, left behind while his selkie family explores the deep ocean. What if his pelt never comes? Does the Moon even see him? Is he putting his clan at risk? When his mother undertakes a journey to the far north to seek help, Aran is left in the care of a reclusive human woman on remote Spindle Island....

"On remote Rollrock Island, men go to sea to make their livings--and to catch their wives. The witch Misskaella knows the way of drawing a girl from the heart of a seal, of luring the beauty out of the beast. And for a price a man may buy himself a lovely sea-wife. He may have and hold and keep her. And he will tell himself that he is her master. But from his first look into those wide, questioning, liquid eyes, he will be just as transformed as she....

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.