The Adventure of the Sussex Vampire by Arthur Conan Doyle

A distressed husband believes his Peruvian wife is attacking their infant son like a vampire, and Holmes is called to investigate. Holmes uncovers a much more human motive involving jealousy and a misinterpreted act of protection. The plot builds tension through eerie suggestion but resolves with rational, humane logic. It’s a story that deconstructs superstition and upholds Holmes’s scientific approach. A clever case of perception versus truth.