"Originally published in 1965 as "Barbarians of Mars" under the pen-name of "Edward P. Bradbury." Subsequent editions published under the title "Masters of the pit" and acknowledged as the work of Michael Moorcock."--Title page verso.
Sequel to: Lord of the spiders or Blades of Mars.
Summary
A deadly plague that turns people into automatons has swept Mars and it is up to Michael Kane to find the secret to the cure buried in the machines used by the superscientific race that once ruled the planet.