Facts Concerning The Late Arthur Jermyn And His Family by H. P. Lovecraft

A reclusive English aristocrat obsessed with his family’s peculiar physical traits delves into ancestral records and travels to the past, uncovering an ugly legacy rooted in an African expedition and a mysterious nonhuman bride; the mounting evidence of a degenerate, inhuman lineage culminates in a grisly discovery that shatters his identity and drives him to a desperate, destructive end that erases the last traces of the family’s secret.