Osiris is the son of Geb and long-forgotten Nut. He was slain by Set during a power struggle to succeed Ra in the aftermath of the Orcgate Wars. He was brought back to life by his wife Isis and Nephthys when they mummified his body, giving him eternal life and making him the deity of death. Osiris and Set are now bitter enemies, but Osiris gladly acceded to the leadership of Horus-Re when Ra chose Horus to succeed him. Osiris also despises and works against Mask. He is friendly with Kelemvor, for they have similar ideas about death and the undead.