'The Adventure of Black Peter' is a Sherlock Holmes story by Arthur Conan Doyle, featured in The Return of Sherlock Holmes collection. It was first published in Collier's in the US in February 1904 and in The Strand Magazine in the UK in March 1904. The story centers on a murder in Forest Row, where a man is killed with a harpoon, prompting Inspector Stanley Hopkins to seek Holmes's expert assistance.