Lord of Misrule — Stephanie Maynard

Beautiful Catrienne Lyly vowed to avenge herself on the powerful magistrate who had destroyed her noble family. Even if it meant that she must match wits with Nicholas D'Avenant, Queen Elizabeth's most mysterious agent. And even if his bold swordplay and seductive cunning drew her into a far deadlier game - and more dangerous passion.
For Nicholas, the man Cat sought was his only link to the traitors who would bring England to war. And even as he found himself yielding to Cat's fiery innocence, he moved to discover all her secrets - even if the price might be more than he'd ever dare lose.