Grave Bargain. The Grave Series, #2

The supernaturally suspenseful sequel to Grave Boy. Dylan messed up. He cheated on his wife, Constance, with Mara, a student at the university where he teaches. He is suspended from his job as a professor, but manages to convince a reluctant Constance to stay with him for the sake of their family. He ends the affair, but Mara does not respond well, and disappears under suspicious circumstances. Soon after, a sinister stranger shows up, determined to dig up the past and threaten Dylan's efforts to make amends.