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:
Races and creatures in His Dark Materials
Deaths are only featured near the middle of "The Amber Spyglass". Much like a dæmon, they accompany a person throughout their life, serving to gently alert the person when it is their time to go to the underworld. Deaths are described as human-like in appearance, yet unnaturally quiet and able to blend into the background with uncanny ease. However, as most people do not wish to see their death, deaths are courteous enough to hide from their humans. Deaths are presented as caring yet stern creatures, showing no pity for a person's dæmon which must vanish upon death. Deaths are present in a physical form in some worlds, much as dæmons can be seen in Lyra's. Deaths can disappear in a similar manner to dæmons. In "The Amber Spyglass" a dead girl says that her death "went forever". Lyra is confronted with her death when she and Will enter the underworld in order to contact the ghost of Lyra's dead friend, Roger.