After Hera found out that Zeus was having an affair with the mortal woman, Semele, she decided to plant the idea in her head that her lover was just lying about being Zeus. Semele demanded that Zeus show her his divine form, but the sheer power of his true form turned her to ash, leaving nothing behind but their unborn child. Zeus cut open his thigh, and put his unborn child in there to develop. After a month, Zeus removed the newborn baby from his leg, and gave the baby Dionysus to Hermes to raise away from Olympus and the wrath of Hera.