The Kingdom of Secrets and Ruin

Shunned by her father and forgotten by her people, Dalliah is hidden away as the secret princess of Apheya. But when the Red King invades, killing her family and stealing their throne, she is disguised as a maid and then ordered to serve him while keeping the secret of her birth unknown. Disgusted in him and what he's done to those she loved, she wants nothing more than his death... while he wants nothing more than her.