"A Scandal in Bohemia" Holmes encounters Irene Adler, a woman who manages to outwit him, becoming one of the few people to do so."The Adventure of the Speckled Band" Holmes investigates the death of a young woman who was killed in mysterious circumstances linked to a venomous snake."The Red-Headed League" Holmes solves the puzzling case of a man who is recruited into a strange league due to his red hair and subsequently finds himself in the midst of a clever criminal scheme."The Adventure of the Engineer's Thumb" Holmes helps an engineer who narrowly escapes a life-threatening situation involving a secretive and dangerous operation."The Adventure of the Blue Carbuncle" Holmes tracks down a valuable gem that has been found in a Christmas goose.