Sherlock Holmes - Deductions

“It is easy to see that your experience has been no common one, Mr. Hatherley.”
“You are all wrong.”
“But we can’t all be.”
“Oh, yes, you can. This is my point.” He placed his finger in the centre of the circle. “This is where we shall find them.”
“But the twelve-mile drive?” gasped Hatherley.
“Six out and six back. Nothing simpler. You say yourself that the horse was fresh and glossy when you got in. How could it be that if it had gone twelve miles over heavy roads?”

“None at all,” said Holmes. “They are coiners on a large scale, and have used the machine to form the amalgam which has taken the place of silver.”

“Well, at least,” said Holmes, “you have had your revenge upon them. There can be no question that it was your oil-lamp which, when it was crushed in the press, set fire to the wooden walls, though no doubt they were too excited in the chase after you to observe it at the time. Now keep your eyes open in this crowd for your friends of last night, though I very much fear that they are a good hundred miles off by now.”