The action takes place during the
American Revolutionary War at "The Locusts", which was the name given to a Colonial-style home in
Scarsdale, New York. During the war, Scarsdale was in the
no man's land between the British and the American armies, called the
Neutral Ground. The house was built in 1787 by American Major William Popham, an officer who served on the staff of generals George Clinton and George Washington and who served as the 7th President-General of the
Society of the Cincinnati, the oldest patriotic organization in the United States. The plot ranges back and forth over the neutral ground between the
British and the
Continental armies as the home stands between those lines. An unknown man, known as Mr. Harper, asks for shelter at The Locusts amidst a storm. Mr. Wharton (a
Loyalist), his daughters Sarah and Frances, and sister-in-law Miss Peyton, agree to admit him into their home. They are suspicious of him and are cautious in discussing the revolution in his presence. Soon, a peddler named Harvey Birch comes along, with an unknown man, also seeking shelter. Harper eyes him carefully. The stranger is really Henry Wharton, a British army captain. Harper leaves the family, but not before revealing he was already aware of the true identity of Captain Wharton. Birch, who has met privately with Mr. Harper for unknown reasons, strongly urges Captain Wharton to return to his post. A group of American troops investigates the home of Birch, before making their way to The Locusts. There, Major Peyton Dunwoodie is confronted by Frances Wharton, who loves him and sympathizes with the Patriot cause. She pleads with him not to arrest or harm her brother, Captain Wharton, but Dunwoodie feels his duty too strongly. He learns that Captain Wharton has disguised himself and used a letter forged with
George Washington's signature to avoid being found. Dunwoodie realizes that Washington's signature is authentic, however, but the Captain cannot explain how he procured it. Dunwoodie arrests Captain Wharton but learns that British troops are in the area. Dunwoodie rushes to assist his fellow colonists, allowing Captain Wharton to escape in the confusion. Captain Wharton tells his commanding officer, Colonel Wellmere, to be on the lookout of Dunwoodie and his troops. Wellmere does not take his advice and skirmish ensues; he is injured and Captain Wharton is recaptured by Captain Lawton. As Wellmere's troops make their retreat, Dunwoodie brings his friend Captain Singleton to The Locusts to be cared for by Dr. Sitgreaves. Frances suggests summoning Singleton's sister to assist. Harvey Birch comes under suspicion for being a British spy although he is really a Patriot. Harper is revealed to be Washington in disguise with whom Birch has other meetings in the course of the book. Birch's role is revealed only after he falls in battle. ==Characters==