"I could tell by numerous subtle signs, which might have been lost upon anyone but myself, that Holmes was on a hot scent. As impassive as ever to the casual observer, there were none the less a subdued eagerness and suggestion of tension in his brightened eyes and brisker manner which assured me that the game was afoot. After his habit he said nothing, and after mine I asked no questions. Sufficient for me to share the sport and lend my humble help to the capture without distracting that intent brain with needless interruption. All would come round to me in due time."
—The Adventure of Wisteria Lodge