Hamilton weaves several other stories into the main narrative of the Prime encounter. Among these is that of the ancient spacecraft "Marie "" Celeste", found crashed on one of the Commonwealth planets, Far Away. An enigmatic figure, Bradley Johansson, claims the original passenger of the spacecraft is alive, an alien he calls the Starflyer. He claims that it is using mind-controlled agents to manipulate events in the Commonwealth, and that it caused the events that led to the discovery of the Primes. The Commonwealth forces dismiss Johansson as a crazy terrorist, and his attempts to interfere with the voyage to Dyson Alpha are thwarted.