Sleeper SEALs (JM Madden) Books in Order

Sleeper SEALs is a shared romantic-suspense project that brings together former Navy SEAL heroes, dangerous assignments, and relationships complicated by old secrets. Different authors contribute different stories, so the books have separate couples, but the common appeal is the same: trained men pulled back toward a crisis they thought they had left behind.

JM Madden's Flat Line follows Parker Quinn, a former SEAL struggling to adjust after a severe injury ended his military career. He has found some purpose with Lost and Found Investigative Service, yet he still misses the feeling of being needed in the field.

A surveillance job changes that fast.

Parker's target is Andromeda Pierce, a lawyer from his past and the woman who broke his heart. Andromeda is prosecuting a dangerous man with terrorist connections, and her work makes her a target. When the threat closes in, Parker and Andromeda are forced on the run while trying to locate a missing witness.

The story is a second-chance romance with a protective-detail framework. Parker has to face the distance between the man he was and the man he believes he can be now. Andromeda has to decide whether trust is possible when the stakes are high and old feelings are still very much alive.

Readers can expect more suspense than domestic drama here. The pace comes from surveillance, criminal connections, attacks, and the need to stay ahead of people who want Andromeda silenced. But Madden keeps the emotional focus close to the couple, especially their history and their unfinished hurt.

Because Sleeper SEALs is a collaborative series, Flat Line works well as a stand-alone entry. It is also a good choice for readers who want a direct bridge between Madden's Lost and Found characters and a tighter, mission-driven romantic thriller.