Gilgamesh, soon to be crowned King of Uruk, travels north to find his homelands in flames and his family on the run. A blood-red moon brings warnings of a new kind of war, and in the far north, the enemies of Sumer are massing. Inanna and Ninshubar sail south to take their revenge upon Enki, the king of the water gods. Armed with the master and struggling to understand its true nature, Inanna will face impossible demons in her quest to fully comprehend the power she has inherited. Meanwhile Ereshkigal, queen of the underworld, has a mysterious visitor. This dark stranger brings with him the threat of dangers far more terrible than Enki, or even Sumer’s warlike neighbours. Because a long time ago, in a realm faraway, a little girl was taken from her family. Now, a vengeance, long prophesied, is about to unfold. As the forces of chaos rise across the riverlands, Gilgamesh must battle against overwhelming odds to save the city he loves, and the Anunnaki will soon discover that no one can escape the sins of the past. Not even the gods.