Shea MacNamara's life just got complicated. When a freak tornado devastates his Oklahoma farm, fifteen-year-old Shea moves to Cape Cod to live with a grandmother he's never met. Struggling to make sense of his new surroundings, he meets a girl along the shore who changes his life. Forever. Kae belongs to an undersea world hidden from humans, where bloody war rages between opposing clans. A fragile peace accord hinges on marriage between the royal families, but treachery and magick lurk in every shadow. With Kae's help, Shea discovers his true heritage and finds that his destiny lies somewhere far below the ocean's surface.

Descent (Son of a Mermaid)

Literature & Fiction

O'Sullivan, Katie

Mythology & Folk Tales

Katie O'Sullivan

Shea MacNamara sank to the bottom of the ocean and survived. As the son of a mermaid, saltwater is in his blood. He discovered a whole new world under the sea, one more beautiful and complicated than he ever imagined. But shadows and dark secrets also lurk beneath the waves. When his girlfriend Kae is kidnapped by a powerful young sorcerer named Zan, Shea learns having royal blood means difficult choices. All three face life and death decisions, balanced precariously between doing what they are told… and defying authority to do what is right.

Defiance (Son of a Mermaid)

A missing black book that can take down Beacon Hill? and the ghost who holds the answers.Massachusetts State Trooper Jack MacDonald sees the world in black and white. Good guys versus bad guys. But life isn't always so simple. When a road crew finds a dead junkie stuffed in a trash bag, Jack's drawn into a world of shadows where nothing is as simple as it seems. Especially not the dark haired beauty caught up in the middle.Maggie Nelson lives in those shadows. Her sister might be the infamous Beacon Hill Madam, but Maggie just wants to stay under the radar and finish college. After her sister's suspicious death, Maggie finds her own life endangered because of a missing ledger filled with names and numbers. It's the kind of information that can crush dreams and ruin lives. Or get you killed. Can a man who doesn't believe in ghosts keep them safe from the shadows closing in on all sides?

Ghost in the Machine

Genre Fiction

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Books by Katie O'Sullivan

See the best price to sell, buy or rent books by the Katie O'Sullivan publisher. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Descent (Son of a Mermaid)

Defiance (Son of a Mermaid)

Ghost in the Machine