Uncovering an ancient evil, Serafina, a mermaid of the Mediterranean Sea, searches for five other mermaid heroines who are scattered across the six seas, to save their hidden world.

At the end of Dark Tide, Book 3 in the Waterfire Saga, Astrid leaves her mermaid friends to confront her ancestor, Orfeo, the evil force behind the rise of the monster Abbadon. Orfeo possesses one of the talismans that the mers need in order to keep the monster locked up forever. But without the ability to songcast, how will Astrid be able to defeat the most powerful mage in history? Meanwhile, Serafina and her Black Fins train goblin troops for battle...

At boarding school, Katie tries to focus on swimming and becoming popular instead of the painful memories of her institutionalized schizophrenic older brother.

Despite recurring nightmares about her mother's death and her own fear of flying, fifteen-year-old Sienna accepts her father's birthday gift to fly to Indonesia with his team of disaster relief workers to help victims of a recent tsunami, never suspecting that this experience will change her life forever.

In the quiet seaside town of Capri, sixteen-year-old Gemma enjoys a close bond with her sister Harper and a growing attraction to next-door neighbor with Alex, but everything changes when, after partying with newcomers Penn, Lexi, and Thea, Gemma discovers she has powers that will force a terrible choice.

Despite some reservations, sixteen-year-old Jessie joins her companions from the previous year's adventure on the Colorado River for a legal rafting trip through the Grand Canyon.

Undine gets along well with her unconventional mother, she adores her baby brother, and she has a devoted kindred spirit in her best friend and next door neighbor, Trout. Undine is basically satisfied...until strange things begin to happen to her.

"Gwen is kidnapped to an island inhabited by fairies, a roguish ship captain, and bloodthirsty beasts--and she must save their Queen before it's too late"--

After the sea levels rise and the world ends, Martha and other survivors are stuck on a giant killer jellyfish, drifting off shore--if boredom does not kill them, maybe their escape attempts will.

An irresistible return to the captivating world of Elfhame. Once upon a time, there was a boy with a wicked tongue. Before he was a cruel prince or a wicked king, he was a faerie child with a heart of stone. #1 New York Times bestselling author, Holly Black reveals a deeper look into the dramatic life of Elfhame's enigmatic high king, Cardan. This tale includes delicious details of life before The Cruel Prince, an adventure beyond The Queen of Nothing,...