В повести Эллери Куин «Неизвестная рукопись доктора Уотсона. Этюд о страхе» (Sherlock Holmes Versus Jack the Ripper, A Study in Terror, 1966) Холмс и Ватсон едут в Дартмур, в замок герцогов Шайрсов. Оказавшись в тех самых местах, где он вел расследование дела Баскервилей, и находясь под впечатлением девонширского пейзажа, Холмс вспоминает.
"ГЛАВА II. ЗАМОК НА БОЛОТЕ
«One of Sherlock Holmes's defects - if, indeed, one may call it a defect -- was that he was exceedingly loath to communicate his full plans to any other person until the instant of their fulfilment. Partly it came no doubt from his own masterful nature, which loved to dominate and surprise those who were around him. Partly also from his professional caution, which urged him never to take any chances. The result, however, was very trying for those who were acting as his agents and assistants. I had often suffered under it, but never more so than during that long drive in the darkness.