It's the middle of the night. Ronan Frost receives a plea for help from his former commanding officer, Tony Denison. Denison is running for his life. An outspoken opponent of globalization and fascinated in Arthurian lore, Frost’s old comrade is the target of agents of the New World Order, a shadowy conspiracy trying to prevent him from finding the Crocea Mors, the sword of Caesar, and perhaps the very blade that King Arthur pulled from the stone to win his kingdom. Frost is sceptical, most of what Denison claims strikes him as bullshit, plain and simple, but there's no denying that someone is trying to kill him. So he's going to help. No matter the risk. That's just who he is. Across London, Sir Charles Wyndham, leader of the Ogmios Team, dispatches Konstantin Khavin to learn the truth behind the attempted assassination… only to discover that the British government wants Denison dead at all costs. And because Frost is with him, Sir Charles is forced to make a choice—abandon Frost, or lose Ogmios for good. It's not a choice he ever wanted to make, but he's going to have to cut Frost loose.