"The Adventure of the Bruce-Partington Plans" is one of the 56 Sherlock Holmes short stories written by Sir Arthur Conan Doyle. It is one of eight stories in the cycle collected as His Last Bow (1917), and is the second and final main appearance of Mycroft Holmes. It was originally published in The Strand Magazine in the United Kingdom and in Collier's in the United States in 1908. Doyle ranked "The Adventure of the Bruce-Partington Plans" fourteenth in a list of his nineteen favourite Sherlock Holmes stories.