Trust. Honor. Ambition. Betrayal.

When the guns fall silent on April 19, 1775, Whitley Endicott is elbows deep in blood. Haunted by the ghosts of those who died for the cause, the young surgeon is determined to save lives and free the spirits of the dead. The only obstacle: she isn't a man.

Men's clothes conceal her gender but can't hide her skills, which earn her a place of trust at Fort Ticonderoga as the American Revolution unfolds. Officers and soldiers alike recognize her innate sense of honor, entrusting her with their lives--and their secrets. When her twin brother and best friend confide in her, Whitley seeks to protect them from any who would do them harm.

American ambition marches the fledgling army into Canada as winter descends, and Whitley strives to keep the soldiers alive despite supply shortages, starvation, and smallpox. Worried her smallest mistake might betray her true identity or endanger those she loves, Whitley must ask herself, who is worthy of trust?