As a U.F. Marshal, Nick Walker has tracked down bad guys all over the Final Frontier. He has taken down killers, corrupt corporations, slave traders, mercenaries, terrorists, and criminal religious cults. But when two government agents drag Nick off to a secret meeting with a clandestine politician, it can't be good. And it isn't. A Federation Ambassador has been assassinated. Beta Centauri is about to ally with Sirius, which has turned rogue...