Within the stories, Kaldor City is a major humanoid city of the future "on a corrupt world governed by an all-powerful Company, where the rich scheme in mansions filled with robot slaves, the poor scrabble for survival in the Sewerpits, the Security forces are out of control and terrorism is a daily fact of life". It was first mentioned in the 1977 "Doctor Who" serial "The Robots of Death" as the home base of a "storm mine" touring the desert searching for and mining precious minerals from within the sands, with the crew working on commission for the Company. Boucher reused Kaldor City in his 1999 novel "Corpse Marker", part of the "Doctor Who" "Past Doctor Adventures" line.