Reaper Man is a fantasy novel by British writer Terry Pratchett. Published in 1991, it is the 11th Discworld novel and the second to focus on Death. The title is a reference to Alex Cox’s movie Repo Man.
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/discworld/novels/11-reaper-man/en.wikipedia.org.md
The spiral notebook, if present, has some straggling notes and To Do lists that illuminate the gist of it.