Some lines can't be crossed. Some battles can't be avoided.

Merry Tamlin thought she could leave her past behind. For five years, the former special forces operative has been hiding in the shadows of Cowbridge, working security at the Blue Moon—a seedy nightclub where the rules are simple: stay detached, avoid trouble, and never look back.

But when an old comrade begs for her help to rescue his kidnapped daughter, Merry is forced to confront the part of herself she thought she'd buried. The mission seems straightforward: locate the girl, extract her, and vanish again.

In Cowbridge's underbelly, where crime runs deep and the gang responsible plays by their own brutal rules, nothing is ever simple. As the streets turn into a battleground, Merry faces a choice: stay in the shadows or step into the light—and risk everything to save an innocent life.

Some lines can't be crossed. But to rescue the girl, Merry might have to cross them all.