"In a manner of speaking," John said, cryptically. "It certainly seemed like magic. I said 'Hold on here, I haven't said a thing about flatmates, we don't know the first thing about one another!' and as it turns out, I was wrong. The man knew everything about my military career, my current situation, even my family. All I knew in return was that I was to meet one Sherlock Holmes at 221B Baker Street. I had no idea that shortly after that we'd be off investigating a string of murders."