The candle and the flame
(Book)

Fatima lives in the city of Noor, on the Silk Road, which is currently protected by the Ifrit, djinn of order and reason, from attacks by the violent and ruthless Shayateen djinn--but Fatima was infused with the fire of the Ifrit who died saving her when she was four years old, and when one of the most important Ifrit dies she finds herself drawn into the intrigues of the court, the affairs of the djinn, and the very real dangers of a magical battlefield.