Like a bird in a gilded cage, Saurimonde is trapped between a brutally abusive husband, Gilles, who treats her like a possession, and a lover whose name she doesn't even know. The only thing she longs for is an escape. But to where? She should have been more careful in what she wished for because the day Gilles spies her and her lover together is her last mortal one. With the aid of the local wise woman, Elazki, Gilles gets his hands on a dangerous ancient potion. He figures out the perfect way to serve it to her - cooked into her lover's heart. One bite has dire consequences.

Left for dead by her husband at the river's edge, Saurimonde awakens to a whole new existence. Now she has become a part of the river itself. Days are spent in erotic encounters with unwary passers-by. Nights are spent in predatory pleasure, feasting on those she has seduced.

As the body count begins to rise in the village, Gilles starts to suspect his wife is still alive. He enlists the help of Elazki, who has secrets of her own, and her darkly handsome nephew, Sordel. Newly returned after being banished by his magus master in the black lands, Sordel unknowingly holds the key to all their fates. One will die, one will wish they were dead, and the other will fulfill their destiny.

Danger awaits them at every turn as they enter a realm where nothing is as it seems. Each will be forced to make terrible sacrifices. Will they be able to break the spell and stop the beautiful demonic creature Saurimonde has become? Can they possibly save her? Or will they too find a brutal death beneath the deep dark waters...