We were residing at the time in furnished lodgings close to a library where Sherlock Holmes was pursuing some laborious researches in early English charters⁠—researches which led to results so striking that they may be the subject of one of my future narratives. Here it was that one evening we received a visit from an acquaintance, Mr. Hilton Soames, tutor and lecturer at the College of St. Luke’s. Mr. Soames was a tall, spare man, of a nervous and excitable temperament. I had always known him to be restless in his manner, but on this particular occasion he was in such a state of uncontrollable agitation that it was clear something very unusual had occurred.