This excerpt comes from "Doctor Who: Godengine" by Craig Hinton, a novel published in 1996 by Doctor Who Books. The narrative follows the Doctor and his companions, Roz and Chris, as they become embroiled in a complex conflict on Mars during a Dalek invasion of the solar system. Their TARDIS is destroyed, stranding them, and they encounter human colonists from Jacksonville and Charon, as well as Martians (Ice Warriors), some of whom are pacifist monks on a pilgrimage and others from a military faction with their own agenda. The plot involves a race to understand and control the mysterious "GodEngine" at the Martian North Pole, a device linked to ancient Osirian technology and the Daleks' plans, while also navigating historical Martian conflicts and the personal struggles of the characters, particularly McGuire's hatred for Martians and the Adjudicators' mission led by Santacosta. The story explores themes of prejudice, trust, and the consequences of altering history, culminating in a confrontation that impacts the fate of Mars and the timeline.