Virginian (Matt Miller in the Colonies, #3)

Twenty-first-century scientist Matt Miller has achieved success beyond his wildest dreams in the American colonies. He’s become a wealthy businessman and politician, with a beautiful wife and family, but the American Revolution looms on the horizon. When a prominent British leader mysteriously disappears, Ben Franklin summons Matt to London to help investigate the involvement of Patrick Ferguson, a man whose ambitions are to change the future. Unknown to them all, another time traveler, with separate motivations, will join them in a struggle across two continents to change the destiny of Western Civilization.