The Jasmine Throne (Hardcover Library Edition)

Tasha Suri's The Jasmine Throne begins the powerful Burning Kingdoms trilogy, in which two women--a long-imprisoned princess and a maidservant in possession of forbidden magic--come together to rewrite the fate of an empire.
Exiled by her despotic brother when he claimed their father's kingdom, Malini spends her days trapped in the Hirana: an ancient, cliffside temple that was once the source of the magical deathless waters, but is now little more than a decaying ruin.
A servant in the regent's household, Priya makes the treacherous climb to the Hirana every night to clean Malini's chambers. She is happy to play the role of a drudge so long as it keeps anyone from discovering her ties to the temple and the dark secret of her past.
But when Malini bears witness to Priya's true nature, their destinies become irrevocably tangled. One is a vengeful princess seeking to steal a throne. The other is a powerful priestess seeking to find her family. Together, they will set an empire ablaze.
Also by Tasha Suri:
Empire of Sand
Realm of Ash