Zeus came to lust after Metis, and chased her in his direct way. Metis tried to escape, going so far as to change her form many times. Turning into various creatures such as hawks, fish, and serpents. However, Zeus was both determined and equally proficient at changing form. He continued his pursuit until she relented.
An Oracle of Gaea then prophesied that Metis first child would be a girl but, her second child would be a boy that would overthrow Zeus as had happened to his father and grandfather. Zeus took this warning to heart. When he next saw Metis he flattered her and put her at her ease. Then with Metis off guard Zeus suddenly opened his mouth and swallowed her. This was the end of Metis but, possibly the beginning of Zeus's wisdom.
After a time Zeus developed the mother of all headaches. He howled so loudly it could be heard throughout the earth. The other gods came to see what the problem was. Hermes realized what needed to be done and directed Hephaestus to take a wedge and split open Zeus's skull. Out of the skull sprang Athena, full grown and in a full set of armor. Due to her manor of birth she has dominion over all things of the intellect.