Star of Cursrah by Clayton Emery is the third novel in the Lost Empires series. It tells two parallel tales about three rebellious teenagers, each group living thousands of years apart from the other, in the Calim Desert. The book details the fall of one of the last cities of the Calim Empire, before the rise of Calimshan.

"Lurking in the ruins is a horrific tale of greed, power, and revenge.
The Protector crawls forth, the shade of a dead city whose rulers refuse to die, and young companions in two distant epochs learn of a dreadful destiny they cannot escape…

…and a deadly threat to all they hold dear."