Tirohia te whiti i raro nei, ka whakautu i te patai i muri mai i te reo ano o te whiti: Ka whakamahi a Holmes i nga raau taero, ina koa kaore he take whakaongaonga. Ka whakamahi ia i te cocaine, ka werohia e ia ki roto i te rongoa e whitu ōrau me te werohanga e puritia ana i roto i te keehi hiako o Morocco. Ahakoa kei te tarai ano a Holmes i te morphine, ka tino whakahe ia i a ia e toro ana ki te whare opium; he ture nga raau taero e rua i te rautau 19 i Ingarangi. Hei taakuta, kaore a Watson i te whakaae ki te ritenga o te cocaine o tana hoa, e kii ana ko te "takitahi anake" o te kaitirotiro, me te awangawanga mo tona paanga ki te hauora hinengaro me te hinengaro o Holmes. I roto i te "The Adventure of the Missing Three-Quarter", ahakoa e kii ana a Watson kua "whakamarie" ia i a Holmes mai i nga raau taero, kei te noho tonu te kaitirotiro i te ritenga "mate, engari kaore i te moe
e whitu ōrau