Serapis

SERAPIS:  Serapis offers a rare link between Greek & Egyptian myth.  This god of the underworld shows up in CHTHONIC legends from both civilizations.  Serapis, who had power over fate and could reward or punish souls of the dead, is often depicted with a dog at his feet.  He watches over the dead in a dark land of eternal night.  (o)

SERAPIS:  Serapis is a Greco-Egyptian variation of OSIRIS, god of the dead, incorporating traits and powers of Greek underworld deities as well as those of Osiris himself.  There is some disagreement over the time and origin of the cult of Serapis, but most scholars agree that the hybrid god was manufactured by Greek and Egyptian rulers to unite the two cultures after the conquest of Alexander the Great.  Eventually, Serapis was also absorbed into Roman mythology as a powerful lord of the afterlife.  Temples dedicated to Serapis drew worshipers of Greek, Egyptian, and Roman backgrounds, all invoking the same deity in hopes of finding joy in the next world.  (p)

Resource List - all entries are taken verbatim from the original source:

(o) "The Encyclopedia of Hell."  Miriam Van Scott.  St. Martin's Press.  ©1998

(p) "The Encyclopedia of Heaven." Miriam Van Scott.  St. Martin's Press.  ©1999