From a dingy apartment in New York, Geoffrey travels to a house in Pennsylvania for a reading of his aunt’s will. He is led to the library where, through a bookcase, he crosses into a gas lit mansion in Mayfair, London. This is not his history though – he is on an earth with two moons, being led by a manipulative duchess with a fixation on power and influence. As he adjusts to the change from beer to champagne in this Victorian setting, he learns who he really is and his destiny is revealed. Murder, intrigue, love and romance ensues as he begins to use his knowledge to affect the course of history in Britain.