The number-one New York Times best-selling authors of The Heart of Everything That Is and Lucky 666 return with an unforgettable and perhaps the most underappreciated chapter in American history - the inspiring, pause-resisting account of Valley Forge, the Continental Army winter camp where George Washington turned the tide of the American Revolution.

On December 19, 1777, some 12,000 members of America's nascent Continental Army staggered into Valley Forge, Pennsylvania, a small encampment 23 miles northwest of British-occupied Philadelphia. The starving and half-naked force was reeling from a string of demoralizing defeats at the hands of the King George III's army and barely equipped to survive the coming winter. Their commander in chief, the focused and forceful George Washington, was at the lowest ebb of his military career. With the Continental Congress in exile and its treasury depleted, the American Revolution appeared lost.

As the days and weeks passed, however, Washington embarked on a mission to transform his troops from a bobtail army of citizen soldiers into a professional fighting force. Keeping a wary eye out for a British attack, he was aided by a trio of homegrown generals as well as a young coterie of American advisors and foreign volunteers led by Alexander Hamilton, John Laurens, and the Marquis de Lafayette. Within six months, Washington had achieved his miracle.

Valley Forge is the riveting true story of an underdog US toppling an empire. Using new and rarely seen contemporaneous documents - and drawing on a cast of iconic characters and remarkable moments that capture the innovation and energy that led to the birth of our nation - the New York Times best-selling authors Bob Drury and Tom Clavin provide a breathtaking account of this seminal and previously undervalued moment in the battle for American independence.