Before the Bible and legendary figures like Hercules, King Arthur, and Beowulf, there was Gilgamesh. As the king of Uruk, a city in ancient Mesopotamia, Gilgamesh protected his people from harm, battling a multitude of fierce demons with the steadfast help of his brother, Enkidu.

But Gilgamesh's reign faced the ultimate challenge from the power-hungry goddess Ishtar, who proposed marriage only to be unceremoniously spurned by Gilgamesh. Ishtar's rage led Gilgamesh to his greatest battle, a battle that shook Gilgamesh to his core and led him to travel further than any other man--to the...