My Lady of Doubt

When Claire Mortimer's twin brother mysteriously disappears from active duty, she takes it upon herself to find her brother and to clear his name as a traitor. Little does she know that a spy named Major Lawrence has taken a liking to her, while the villain named Grant is clever and elusive!
Excerpt:
"Several of us had remained rather late that evening about the cheerful fire in front of my hut, for the nights were still chilly, although it was May, and the dreadful winter passed, discussing the improved condition of our troops, the rigid discipline of Baron de Steuben, and speculating on what would probably be attempted now that Sir Henry Clinton had succeeded to the command of the forces opposing us. I remember Maxwell joined us, together with Knox of the artillery, each man with a different theory of campaign, but alike agreeing that, in spite of all we had endured during those months of suffering and privation at Valley Forge, the time to strike once again was near at hand, although our numbers were barely half that of the enemy."