In the fall of 1832, London, England, Ariana Dallenhauf begins an unlikely journey into the dark reaches of the unknown. Her guide and mentor, Dimitri Rochester, takes the young woman and attempts to transform her into what he deems more worthy, an immortal; for Dimitri Rochester is the shadow that consumes light; he is an artful killer, a vampire. Although Ariana is reluctant, she has no choice but to follow Dimitri into her new existence.
While adapting to her new life, Ariana discovers that her assumptions about Dimitri are wrong and her feelings for him have changed into something more passionate. In gaining a better understanding of what it means to be a vampire, Ariana discovers her history with vampires goes back further than she ever imagined, for she is in the middle of a legend and has become part of its unfolding story.