The Adventure of the Greek Interpreter Sherlock Holmes, far from being a one-off in terms of his powers of observation and deductive reasoning, in fact has an elder brother whose skills, or so Holmes claims, outstrip even his own. As a consequence of this, Watson becomes acquainted with the Diogenes Club and his friend's brother, Mycroft. Mycroft, as Watson learns, does not have the energy of his younger brother and as a consequence is incapable of using his great skills for detective work: In spite of his inertia, the elder Holmes has often delivered the correct answer to a problem that Sherlock has brought to him.
Sherlock Holmes pastiches sequel, "The Kentish Manor Murders", and Symons also wrote a Holmes short story pastiche. Thomas Brace Haughey wrote a series of six novels "in the best tradition of Holmes and Watson" from 1978-1986 with Geoffrey Weston as the Sherlock character (and a descendant of Mycroft Holmes) and John Taylor as his Watson, living at 31 Baker Street. These stories, "The Case of the Invisible Thief", "The Case of the Frozen Scream", "The Case of the Maltese Treasure", "The Case of the Kidnapped Shadow", "The Case of the Hijacked Moon", and "The Case of the Unbolted Lightning", are all deeply imbued