Idolatry: A Romance. by Julian Hawthorne.

The story revolves around Manetho's dark obsession with Helen, his adopted father's half-sister. When she chooses to marry Thor instead, Manetho's jealousy drives him to commit murder, claiming her diamond ring as a trophy. Despite evading immediate consequences, the narrative explores the themes of guilt and fate, questioning whether Manetho can truly escape the repercussions of his actions or if vengeance will ultimately catch up with him.