The twelve mysteries gathered in this first collection of Sherlock Holmes and Dr Watson's adventures reveal the brilliant consulting detective at the height of his powers. Problems involving a man with a twisted lip, a fabulous blue carbuncle and five orange pips tax Sherlock Holmes's intellect alongside some of his most famous cases.

Sherlock Holmes is a fictional character created by Scottish author and physician Sir Arthur Conan Doyle, a graduate of the University of Edinburgh Medical School. A London-based "consulting detective" whose abilities border on the fantastic, Holmes is known for his astute logical reasoning, his ability to adopt almost any disguise and his use of forensic science to solve difficult cases.