A week after uncovering the secret of what really happened at the Battle of the Little Bighorn, history professor Matt Conroy was lying in a morgue with the back of his head blown off. SFPD homicide inspector Tom McGuire, a long-time friend of Conroy's, volunteers to assist the FBI in bringing the killer to justice. The FBI, however, is ordered to stand down for "national security" reasons. They thought that would be the end of it. They were wrong. Tom McGuire was not about to stand down. Not for anyone, not for any reason. That decision put him in the crosshairs of one of the world's most secretive and dangerous organizations - an organization whose rich and powerful members will stop at nothing to make sure their 140-year-old secret remains hidden. Drawn into a labyrinth of conspiracies over a century old, Tom McGuire has just walked into his worst nightmare.