Beauty and the Immortal: It started with a dig

Some things are best left undisturbed for a reason. Especially ones that are buried in the ground. Thirteen years after the incident at Winchester Manor, Mallory Winchester resides with her uncle and his family. She is to wed a baron. However, Mallory faces betrayal. Desperate, she sets out looking for the buried artefact that she once believed was a joke told by her grandmother. But what do you do if you don't find the object, but a person instead? And not just any person, but an immortal being who was never meant to see daylight ever again. Mallory is convinced that whoever created Hadeon Van Doren must have mixed in generous doses of evil, sadistic nature, and dangerously handsome looks. Now, besides her initial problem, she must find a manual to tame this person who is looking at her as if she is his next meal, as well as tame her.