Sir Arthur Conan Doyle 
The Adventure of Black Peter 

In ‘The Adventure of Black Peter’, a ship captain is found dead, stabbed through with a harpoon. Police inspector Stanley Hopkins, who is being mentored by Sherlock Holmes brings the case to Holmes and Dr. Watson. An abusive man, the captain had many enemies, widening the suspect list. The investigation finds Holmes & company on a stakeout, on a case that involves a chance meetings on the high seas, and stolen securities.