THE DRUGGIST'S SHOP
Scotland Yard suspected that a London druggist dispensed tonics and other remedies adulterated with deadly doses of arsenic to any patron whose hair was slicked with pomade. Eighteen individuals with this profile had died after ingesting a medicine prepared by this druggist named Peter Poisoner. Scotland Yard needed someone to infiltrate as an attendant in Poisoner's shop, and Inspector Lestrade had mentioned my friend’s name as a detective knowledgeable about the ingredients of druggist’s trade and as someone stupid enough to accept such a dangerous mission. Effectively, Holmes was quick to accept since that position would give him free access to laudanum, to which my friend was addicted. I was not present during Lestrade's visit to 221B Baker Street, and I was not informed of anything either (of which I complained bitterly once the whole thing was over). Only two days later, during dinner, Holmes begged me to write a prescription for a laxative. “Are you constipated?” I as...