Doctor Who Planet of Fire by Peter Grimwade

This collection of excerpts is from "Doctor Who: Planet of Fire" by Peter Grimwade, a novelization based on a BBC television serial. The text details a perilous adventure involving the Doctor, his companion Turlough, and a new character, Peri, as they journey to a volcanic planet called Sarn. The narrative weaves together several plotlines, including Turlough's mysterious past as a Trion exile, the Master's manipulative use of the robot Kamelion, and the Doctor's efforts to save the superstitious Sarn people from both a volcanic eruption and the Master's machinations. Ultimately, the story culminates in a confrontation with the Master and Turlough's emotional reunion with his brother and his decision regarding his future.