An astonishing debut novel about friendship, trust and survival - with a monstrously big heart. Perfect for fans of Kiran Millwood Hargrave and SF Said.

Two hundred years ago, the Ruin poisoned the land and caused never-before-seen sea creatures to claim the ocean as their own. To the coastal villages that are all that is left of humanity, they are precisely what they have been named: monsters.

But when Sunny discovers one of those monsters trapped on the beach, she realises everything she thought she knew about them is wrong. Mo is an intelligent, gentle creature, far more in tune with nature than humans.

Mo is searching for his lost brother and Sunny is determined to help him. As the two forge an unlikely bond, the possibility of peace grows. But not all humans can be trusted, and not all monsters want to be friends. Can Sunny and Mo overcome their families' mutual suspicion and persuade the two sides to work together to save their dying world?

'A powerful tale of compassion and understanding' - Hannah Gold, author of The Last Bear.

Sunny waited until her mother was asleep before she went back for the monster . . .

All her life, Sunny has known three truths about the creatures that prowl the seas off her tiny coastal town. They are dangerous. They are violent. They are monsters.

But when a chance encounter leads to an unexpected connection, Sunny discovers just how wrong she has been. The monster she meets - Mo - is intelligent, gentle, and searching for his lost brother.

Sunny desperately wants to help, and to keep her new friend a secret. But other people are keeping secrets too. And as hunger grips the town, new truths will emerge about the real monsters in Seawaren . . .

An astonishing debut novel about friendship, trust and survival, perfect for fans of Skellig.

'A spectacular debut, full of adventure and bravery. Sunny and Mo have stolen a piece of my heart' - Clare Harlow, author of Tidemagic: The Many Faces of Ista Flit.