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 plan to live independently and raised her daughter with the skills to do the same if she chose to. Finding the resources her mother carefully hid for her, Enola decides to run away rather than be forced into boarding school by Mycroft. She eventually comes to London where she secretly sets herself up in business as a private investigator when she realises she is equally as talented at the profession as her older brother even as she is determined to elude his notice. Holmes cameos at the end of "Detective Comics" #572, the comic series' 50th anniversary issue, helping Batman,