Death (Discworld)
Death has appeared in every Discworld novel, with the exception of "The Wee Free Men" and "Snuff", and had a possible cameo at the end of "Johnny and the Dead" (the character was not identified, but spoke in unquoted small caps). The Discworld books with Death as a leading character, starting with "Mort" in 1987, are:
Mort
Mort is a fantasy novel by British writer Terry Pratchett. Published in 1987, it is the fourth "Discworld" novel and the first to focus on the character Death, who only appeared as a side character in the previous novels. The title is the name of its main character and also a play on words: in French, "mort" means "death". The French language edition is titled "Mortimer".