I'll put a pin in it. Now, this line is the main road. You see that it runs east and west past the school, and you see also that there is no side road for a mile either way. If these two folk passed away by road, it was this road.”
“Exactly.”
“By a singular and happy chance, we are able to some extent to check what passed along this road during the night in question. At this point, where my pipe is now resting, a county constable was on duty from twelve to six. It is, as you perceive, the first cross-road on the east side. This man declares that he was not absent from his post for an instant, and he is positive that neither boy nor man could have gone that way unseen. I have spoken with this policeman to-night, and he appears to me to be a perfectly reliable person. That blocks this end. We have now to deal with the other. There is an inn here, the Red Bull, the landlady of which was ill. She had sent to Mackleton for a doctor, but he did not arrive until morning, being absent at another case. The people at the inn were alert all night, awaiting his coming, and one or other of them seems to have continually had an eye upon the road. They declare that no one passed. If their evidence is good, then we are fortunate enough to be able to block the west, and also to be able to say that the fugitives did not use the road at all.”
“But the bicycle?” I objected.
“Quite so. We will come to the bicycle presently. To continue our reasoning: if these people did not go by the road, they must have traversed the country to the north of the house or to the south of the house. That is certain. Let us weigh the one against the other. On the south of the house is, as you perceive, a large district of arable land, cut up into small fields, with stone walls between them. There, I admit that a
