It is the winter of 1777. At Valley Forge, the American Revolution is dying in the freezing mud. General George Washington, a man of reason and Providence, is staring into the abyss of total defeat. With his men rotting from disease and the British Empire closing the noose, Washington realizes that lead and steel will not be enough. He needs a miracle—or a monster.

Deep within the shifting mists of the Great Dismal Swamp, Washington strikes a clandestine pact with Ronald Jameson, a man burdened by an ancient, lupine curse. Jameson is no mere soldier; he is a force of nature unleashed. Deployed as a spectral saboteur, Jameson wages a terrifying war of biological and psychological carnage against the King’s men. To the British, he is the "Deep Creek Demon"—a liquid shadow that shatters musket locks, turns rations to rot, and leaves behind nothing but bone-shattering silence.

But the British do not surrender easily. They respond by unleashing a specialized cadre of trackers and occultists armed with "Moon-Metal"—silver projectiles forged to kill the unkillable. As the hunt intensifies, Jameson must navigate a "Grim Calculus": how to sate the beast’s hunger for blood without losing his own soul. From the blood-soaked bogs of the Revolution through the "Long Century" of America's rise, one truth remains