The morning sun beat down mercilessly on the Naval Special Warfare Center in Coronado, California, turning the already brutal training grounds into something that felt like the surface of another planet. Heat shimmered off the concrete, distorting the air into liquid mirages that made the assembled recruits look like they were standing in water. But there was nothing liquid or forgiving about this place—Coronado was where dreams came to die or to be forged into something harder than steel, and the twenty-three recruits assembled for morning roll call were about to learn which category they belonged to.

Among those recruits, standing in the second row with perfect military bearing that somehow went unnoticed, was a woman who would change everything about how this facility operated. But no one knew that yet. All they saw was what they expected to see: a target.

Emma Mitchell stood at five feet three inches, with blonde curls that refused to stay completely contained in her regulation bun and bright blue eyes that gave her an appearance of almost unsettling innocence. In her standard-issue PT gear—gray shirt, black shorts, running shoes that had clearly seen better days—she looked like she’d taken a wrong turn on her way to a college campus and somehow ended up at one of the most brutal training facilities in the American military. Which was, of course, exactly the impression she’d been carefully cultivating for the past six weeks.

“Well, well, well,” a voice boomed across the training ground, and Emma didn’t need to turn to know who it belonged to. Sergeant Marcus Kane owned this training facility the way sharks owned the ocean—absolutely, ruthlessly, and with teeth always visible. “What do we have here?

Looks like someone’s kid sister wandered onto base.”

The laughter started immediately, that particular brand of cruel amusement that groups of men perfect when they sense weakness and smell blood in the water. Emma had heard it before, would hear it again, and had learned long ago that the best response was often no response at all. “Nice artwork, Barbie,” Marcus continued, his voice carrying that theatrical quality of someone performing for an audience he knew would appreciate the show.

He’d moved closer now, circling Emma like a predator assessing prey, and his eyes had locked onto the edge of a tattoo visible where her PT shirt had shifted on her shoulder. “What’s that? A dragon?