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:
Death (Discworld)
Ysabell is the adopted daughter of Death, who saved her as a baby when her parents were killed in the Great Nef desert (no explanation has been given as to why he did this; Ysabell said that "He didn't feel sorry for me, he never feels anything... He probably "thought" sorry for me."). When first encountered she is a sixteen-year-old girl with silver hair and silver eyes who, it transpires, has been sixteen for thirty-five Discworld 'years' (no time passes in Death's Domain). During her encounter with Rincewind (see below), her behaviour is sufficiently flamboyant as to cause him to believe she is "bonkers". When Mort first encountered Ysabell, he was given the impression of "too many chocolates" (though Pratchett notes that he would have described her as "Pre-Raphaelite" if he had ever heard the word). She also has a fixation for the colour pink.