Death's Master is a fantasy novel by British writer Tanith Lee, the second book in her series Tales from the Flat Earth.

[1] The lesbian queen Narasen is forced by a curse to become pregnant in order to save her city.

Simmu and Azhrarn learn the location of a well on the flat earth directly under the well of the gods' water of immortality in "Upperearth".

The virgins being deflowered, the upper well cracks, and Simmu and Kassafeh collect some of the water of immortality in a flask.

As they travel to the east to found a city of immortals, a rogue named Yolsippa unknowingly drinks a little water from their flask.

With help from the demons, they build the beautiful city of Simmurad and bring the most brilliant people of the time to be immortal there.

At the suggestion of Azhrarn, who is bored with Simmurad, Uhlume makes Zhirek his agent to destroy it.

Death's Master won the British Fantasy Society's August Derleth Award for best novel.