His Last Bow is a collection of eight Sherlock Holmes mysteries, including:

• "The Adventure of Wisteria Lodge"
• "The Adventure of the Cardboard Box"
• "The Adventure of the Red Circle"
• "The Adventure of the Bruce-Partington Plans"
• "The Adventure of the Dying Detective"
• "The Disappearance of Lady Frances Carfax"
• "The Adventure of the Devil's Foot"
• "His Last Bow"

As the title of this series of eight mystery stories, His Last Bow takes place at the beginning of World War I, and a German spy, Von Bork, has been collecting the enemy's military secrets for several years through an Irish American informant. He is waiting for the last piece of the puzzle to be delivered to him before he can travel back to his country and relay the last of his findings. Von Bork will be heralded as a hero to the German army when he gets back; however, when the Irish American informant, Altamont, shows up with the package, things start to get a little strange in the Von Bork household. It is up to Sherlock Holmes to stop these military secrets from reaching the enemy's hands.