1777. The War for Independence has ground to a bloody stalemate. For Captain Elias Thorne, the silence of the defensive war is deafening. Fighting a private battle against the "Sun"—the manic, high-voltage energy that fuels his brilliance but threatens his sanity—Elias is desperate for the storm.

He finds it in General Benedict Arnold.

Sent north to Saratoga, Elias discovers a kindred spirit in the Dark Eagle. Arnold is fearless, aggressive, and electrified by the same chaotic fire that burns in Elias. Together, they defy orders and lead the charge that secures the miracle victory of the war. But while Elias fights to govern his passions, Arnold surrenders to his. Shattered by a leg wound and embittered by a Congress that refuses to honor him, the American hero begins to rot from the inside out.

As the conflict shifts from the battlefield to the shadows, Elias takes command of the Culper Spy Ring. From Washington’s headquarters, he guides Bella Stirling—Agent 355—through the deadly, gilded cage of British-occupied New York. But amidst the invisible ink and laundry-line codes, a terrifying pattern emerges. A new player has entered the game. A high-level source code-named Gustavus is negotiating the sale of the most strategic fortress in America: West Point.

Elias races to decode the treason before the British fleet sails up the Hudson, unaware that the monster he is hunting is the man he idolizes.

From the smoke of Saratoga to the midnight treachery on the banks of the Hudson, The Traitor’s Turn is a tragedy disguised as a thriller—a story of how the brightest heroes cast the darkest shadows.