Lady Hermione Wilmont has loved the rakish Earl of Rockhurst from afar forever, defending his scandalous ways at every turn. That is until she wishes she could follow after him at night, completely unseen, so as to reveal his true noble nature. Much to her shock, Hermione finds herself fading from sight as the sun sets until she is completely invisible. Freed of the confines of Society, she recklessly follows the earl into the temptations of the night and shockingly discovers that the Earl's scandalous veneer is merely a cover for his real duty: safeguarding London as the Paratus, the Protector of the Realm. And while the Earl has sworn to combat evil at all costs, his world is altered one night when an unseen creature, an invisible miss, stumbles into his arms and unwittingly saves his life. Could Hermione be the final temptation sent to lead him into his ultimate destruction or the answer to an ancient prophesy which would set him free?