The Tale of Nefret by M.L. Bullock
Summary: Twin daughters of an ancient Bedouin king struggle under the weight of an ominous prophecy that threatens to divide them forever. Royal sibling rivalry explodes as the young women realize that they must fight for their future and for the love of Alexio, the man they both love. The Tale of Nefret chronicles their lives as they travel in two different directions. One sister becomes the leader of the Meshwesh while the other travels to Egypt as an unwilling gift to Pharaoh.