In Egyptian mythology Seth  (or Set) was the evil brother of the gods
and goddesses Osiris, Isis, and Nephthys. He was the son of the earth
god Geb and the sky goddess Nut. Seth tore himself from his
mother's body before he was a fully formed baby. For this reason, he used
pieces of animals to complete his body. Some of the many
 animals associated with Seth are the pig, donkey, scorpion, antelope, hippopotamus, and
crocodile. Seth was a sky and storm god. Seth became jealous of the other gods, and that
turned him into one of the chief forces of evil. Above all, Seth
envied his brother Osiris, who ruled as king of Egypt while
Seth served only as lord of the desert. Seth was
determined to destroy his brother. He arranged a great feast to which he invited
Osiris and the other gods. He had carpenters construct a large and
beautifully decorated box, which he placed at the entrance
hall of his palace. When Osiris arrived, Set tricked him into
getting inside the box. As soon as Osiris stepped into
the box, Set ordered his servants to nail down the lid, seal it with
molten lead, and throw it into
 the Nile River. Osiris drowned. Their sister Isis, who was
also Osiris's wife, searched for her
 husband and eventually found the box. She brought Osiris back to life long
 enough to have a son, Horus.
However, Set found Osiris's body and cut it into pieces. Then he
scattered the pieces throughout Egypt.
 Nephthys, Set's wife and sister, helped Isis locate the pieces and resurrect Osiris. After that, Osiris
went to rule the underworld as king of the dead.