Awakened by the Sheikh (Desert Kings #3)
Diana Fraser

Since his unfaithful wife died, King Tariq of Ma'in is devoted to three things: his children, his country and remaining single. When his brother hires him a translator he doesn't need, Tariq isn't impressed. But, when he hears Cara's seductive voice, he decides she can stay, providing she doesn't distract him from the most important meetings of his life where he intends to regain control of his country's wealth. But each day he discovers something new about Cara: qualities that break through the protective shell he'd built around himself, and language skills he can use to his own—and his country's—benefit. So long as Cara doesn't know she's being used, he should succeed.