Victorian Undead horde of zombies. Being driven to a corner while learning that shooting the zombies in the head will effectively dispatch them, Holmes and Watson are saved by the arrival of heavily armed and armored Royal Marines led by the former's brother, Mycroft Holmes. After saving Holmes and Watson, Mycroft escorts them to the surface and proceeds in providing them answers. As Holmes and Watson are being escorted, Sebastian Moran spies them from afar and travels to Whitechapel, where he reports his news to his master - an undead Professor Moriarty. At the Diogenes Club, Mycroft debriefs Holmes and Watson of
Sherlock Holmes pastiches Friends Investigate. Mycroft Holmes, Dr John Watson and Professor George Challenger also appear in the same book. Boris Akunin's short story "The Prisoner of the Tower, or A Short But Beautiful Journey of Three Wise Men" in the "Jade Rosary Beads" compilation describes Holmes and Erast Fandorin's race to thwart a devious extortion plan by Arsène Lupin. Author Nancy Springer writes a series of novels of the adventures of Enola Holmes, the much younger teenage sister of Sherlock and Mycroft. Upon their mother's disappearance, Enola discovers that she in fact left of her own volition according to a carefully devised