According to the Homeric Hymn to Hermes, Zeus in the dead of night secretly begot Hermes upon Maia, who avoided the company of the gods, in a cave of Cyllene. After giving birth to the baby, Maia wrapped him in blankets and went to sleep. The rapidly maturing infant Hermes crawled away to Thessaly, where by night-fall of his first day he stole some of his half-brother Apollo's cattle and invented the lyre from a tortoise shell. Maia refused to believe Apollo when he claimed Hermes was the thief and Zeus then sided with Apollo. Finally, Apollo exchanged the cattle for the lyre, which became one of his identifying attributes.