[4] Thinking that she and the other women had just killed a lion—for Dionysus had driven them mad—Agave carried her son's head on a stick back to Thebes, only realizing the truth when confronted by her father, Cadmus.
Her sisters spread the report that she had only endeavored to conceal unmarried sex with a mortal man, by pretending that Zeus was the father of her child, and said that her destruction was a just punishment for her falsehood.
After Dionysus, the son of Semele, had traversed the world, he came to Thebes and sent the Theban women mad, compelling them to celebrate his Dionysiac festivals on Mount Cithaeron.
Pentheus, wishing to prevent or stop these riotous proceedings, was persuaded by a disguised Dionysus to go himself to Cithaeron, but was torn to pieces there by his own mother Agave, who in her frenzy believed him to be a wild lion.
[5] For this transgression, according to Hyginus,[6] Agave was exiled from Thebes and fled to Illyria to marry King Lycotherses, and then killed him in order to gain the city for her father Cadmus.