The Jasmine Throne (The Burning Kingdoms #1) by Tasha Suri

Exiled by her despotic brother, princess Malini spends her days dreaming of vengeance while imprisoned in the Hirana: an ancient cliffside temple that was once the revered source of the magical deathless waters but is now little more than a decaying ruin.

The secrets of the Hirana call to Priya. But in order to keep the truth of her past safely hidden, she works as a servant in the loathed regent's household and cleaning Malini's chambers. When Malini witnesses Priya's true nature, their destinies become irrevocably tangled. One is a ruthless princess seeking to steal a throne. The other a powerful priestess desperate to save her family. Together, they will set an empire ablaze.

Softcover; 576 pages