Ophelia's been successful at hiding her true identity, until the mark of the serpent appears on her neck—a death sentence, should it be seen by anyone in her town. Hiding the mark might save her from falling victim to the witch hunts of her era, but the scorching sensation it carries can’t be ignored. When the mysterious Ethan is sent to collect her for a life of something more, she learns concealing the mark is the least of her worries. She’s destined to don a new mask—to join a dark, supernatural world and protect the future of people she may never meet. What she doesn’t know—what she learns too late—is that her initiation won’t be complete until she kills the man she loves.