To save her gravely ill daughter, widowed nurse Evelyn enters the mysterious Blackwood estate, only to discover that her patient, Duke Lucian, is a vampire who has lived for over two hundred years.
Everyone else’s blood awakens his deadly hunger. Hers is the only one that calms it.
As the two grow closer, a shocking secret hidden inside Evelyn’s late husband’s wedding ring begins to surface, along with a mysterious Blood Mark that appears on both of them. When Lucian risks exposing his true form