In this definitive conclusion to the peacekeeper series, Xander Martin and The Calyster return from the galactic center, successful in their previous mission. The war with The Zalu Empire continues to rage across the galaxy, and the crew of The Calyster have no doubt that they will be sent on another wild mission. When the order for that wild mission inevitably arrives, The Calyster sets off at once. But they do not know that this mission will have unexpected consequences, consequences that will change the face of the galaxy forever.