Her song lures him in, but it could cost them everything. Captain Killian Quinn has brokered a fragile peace with the ruthless merfolk haunting his offshore fishing lanes—but one wrong move could cost him his crew and his life. Even so, there's one mermaid he can't forget: Lorelei Roth, whose seductive song and fiery spirit tempt him like no other. Lorelei is trapped by a craving for human flesh that forces her into a dangerous experiment meant to save her kind. As the tests progress, she begins to doubt whether the cost of freedom is too high. Her fiancé, entranced by her beauty, remains unaware of the true danger she poses. But Lorelei can’t ignore the suffering of a fellow mermaid—locked in a tank, denied the healing touch of the sea. With everything at stake, Lorelei must decide: risk everything for her freedom, or save the ones she loves by facing the dark truth about herself? Can Lorelei escape the darkness within, or will it consume them both?