Adventure of the Norwood Builder

'For me, Watson, life is not so interesting,' says Holmes.'I loved to read the newspaper, hoping to find some news of an interesting crime for me to investigate or a dangerous criminal for me to catch. Where are all those clever criminals these days?'Then, suddenly, a wild, excited young man runs up the stairs to Holmes' room. He has a story to tell about a strange crime that took place in Norwood. But who is the criminal? And is he dangerous? Life, for Holmes, suddenly starts to get interesting.