Enemy in the Fort — Sarah Masters Buckey

It's 1754. Rebecca Percy lives in a New Hampshire fort on the edge of the English frontier. She's waited years for word of her parents, captured by Abenaki Indians. Then Widow Tyler, the kind woman she lives with, takes in a white boy raised by Abenalcis and just brought back by English soldiers. Rebecca is appalled to see that the boy's loyalties lie with the Indians. Is he responsible for a rash of thefts in the fort, even for the latest Indian attack? The answers shake Rebecca's deepest beliefs about Indians -- and settlers.