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.
William Mycroft and took five wickets in an innings eight times, but did even more deadly work for the MCC with 31 wickets at the extraordinary average of 7.29, and also was deadly in one innings for England against Kent and a powerful Gloucestershire team with W.G. Grace in his prime. In 1878, Mycroft played much less outside county cricket, taking only fifteen wickets, but took a career best 101 for Derbyshire. In the 1879 season he was down to 48 wickets for the club which was still the best total. He topped the wicket tally for Derbyshire in the 1880 season