Death (Discworld)
Death is a fictional character in Terry Pratchett's "Discworld" series and a parody of several other personifications of death. Like most Grim Reapers, he is a black-robed skeleton usually carrying a scythe. His jurisdiction is specifically the Discworld itself; he is only a part, or minion, of Azrael, the universal Death. He has been generally used by Pratchett to explore the problems of human existence, and has become more sympathetic throughout the series.
List of dimensions of the Discworld
The sad, mad things that live there (a pastiche of Lovecraftian horrors) have no understanding of the world, simply craving light and shape. Therefore, they try to warm themselves by the fires of reality. It has been noted that should they ever break through, the Universe would be destroyed, rather like an ocean warming itself around a candle. Some of them can survive in this world under special circumstances, and become something rather like demons (though they cannot be seen as demons per se, first because their existence is not dependent on human belief, and second because, as they are completely lacking in vitality, they are neither good nor evil, but the opposite of both). For most though, the reality they crave is soon fatal, due to their lack of a natural morphic field.