 The second is the change in command of the military prison on Stack Islands in Copper Mountain, from Iosep Tolin to Pilar Bacarion, a woman who had been very close to Admiral Lepescu but had managed to evade the purges sparked by Lepescu's manhunts in "Hunting Party".She plots to effect still another change of command, of a good portion of Fleet and eventually the Familias.A third possible event referenced by the title is the plot by the Benignity of the Compassionate Hand to undermine the expansionist capabilities of Fleet by arranging for the rejuvenation drugs being used on the master chiefs to be contaminated; "Project Retainer".