I brought the peasant across, and Holmes dispatched the frightened man with a note to Dr. Huxtable.
“Now, Watson,” said he, “we have picked up two clues this morning. One is the bicycle with the Palmer tire, and we see what that has led to. The other is the bicycle with the patched Dunlop. Before we start to investigate that, let us try to realize what we do know, so as to make the most of it, and to separate the essential from the accidental.”
“First of all, I wish to impress upon you that the boy certainly left of his own free-will. He got down from his window and he went off, either alone or with someone. That is sure.”
I assented.
“Well, now, let us turn to this unfortunate German master. The boy was fully dressed when he fled. Therefore, he foresaw what he would do. But the German went without his socks. He certainly acted on very short notice.”
“Undoubtedly.”
“Why did he go? Because, from his bedroom window, he saw the flight of the boy, because he wished to overtake him and bring him back. He seized his bicycle, pursued the lad, and in pursuing him met his death.”
“So it would seem.”
“Now I come to the critical part of my argument. The natural action of a man in pursuing a little boy would be to run after him. He would know that he could overtake him. But the German does not do so. He turns to his bicycle. I am told that he was an excellent cyclist. He would not do this, if he did not see that the boy had some swift means of escape.”
“The other bicycle.”