In "Thief of Time" Susan once again comes into conflict with the Auditors, who are now attempting to stop time so that they can catch up with their paperwork. She is forced to find the son of Time, whom Death cannot influence or even see, because, being only "mostly human", the boy is not subject to death. Susan is aided in her mission by Lu-Tze, a philosopher/James Bond parody, and Myria LeJean/Unity, a former Auditor who becomes human. Time's husband, Wen the Eternally Surprised, describes her as "helpfulness personified".