New York Times–bestselling author: A wounded soldier falls for his beautiful therapist—a woman he has promised to protect.

After being ambushed in Afghanistan, weapons sergeant Dan Taylor makes a solemn vow to a fallen soldier. Dan promises to look out for his late comrade's sister, Cait. But when Dan awakens wounded at a Pearl Harbor hospital, it's Cait, a physical therapist, who's assigned to his care. Now he must protect the woman he secretly loves . . . from himself.

This classic novella was originally published under the title "Hidden Heart" in the collection, Course of Action: Crossfire