Midnight enchantment - Anya Bast

Niall Quin, mage and the finest thief in the Black Tower, is the fae's best hope for freedom. Only he stands a chance of tracking down and retrieving the missing 'bosca fadbh' from the Summer Queen. But he meets his match in Elizabeth Cely Saintjohn, who has taken control of the pieces on the Summer Queen's behalf - and has refused to hand them over. Torn between his duty and the shocking lust Elizabeth, a rare winter fae, has stirred within him, Niall must convince her to surrender the pieces before it's too late.