While it's dressed up in fancy words, even someone like old Jack, who hasn't read much, knows that those smokestacks spew out the sweat and blood of the poor.,As he spoke, he cast his gaze towards Old Jack standing beside him. Seeing the latter’s bewildered expression, he nonchalantly took off his old hat and placed it on his chest, then with a lazy slight bow, said:,“Oh, I forgot to introduce myself. My name is Sherlock Holmes, a detective.”。