David Marcum first discovered Sherlock Holmes in 1975, at the age of ten, when he received an abridged version of The Adventures during a trade. He is the author of "The Papers of Sherlock Holmes" Vol.'s I and II (2011, 2013), "Sherlock Holmes and A Quantity of Debt" (2013) and "Sherlock Holmes - Tangled Skeins" (2015). Additionally, he is the editor of the three-volume set "Sherlock Holmes in Montague Street" (2014, recasting Arthur Morrison's Martin Hewitt stories as early Holmes adventures,) and the massive three-volume "The MX Book of New Sherlock Holmes Stories" (2015). He has contributed essays to the "Baker Street Journal", "The Solar Pons Gazette", and "The Gazette", the journal of the Nero Wolfe Wolfe Pack. He began his adult work life as a Federal Investigator for an obscure U.S. Government agency, before the organization was eliminated. He returned to school for a second degree, and is now a licensed Civil Engineer, living in Tennessee with his wife and son. He is a member of The Sherlock Holmes Society of London, The John H. Watson Society ("Marker"), The Praed Street Irregulars ("The Obrisset Snuff Box"), The Solar Pons Society of London, and The Diogenes Club West (East Tennessee Annex), a curious and unofficial Scion of one. Since the age of nineteen, he has worn a deerstalker as his regular-and-only hat from autumn to spring. In 2013, he and his deerstalker were finally able make a trip-of-a-lifetime Holmes Pilgrimage to England, where you may have spotted him. If you ever run into him and his deerstalker out and about, feel free to say hello!