修道院公学（11）

“This case grows upon me, Watson,” said he. “There are decidedly some points of interest in connection with it. In this early stage I want you to realize those geographical features which may have a good deal to do with our investigation.

“Look at this map. This dark square is the Priory School. 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.”

Chart of the surrounding area

“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 country 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 bicycle is impossible. We can dismiss the idea. We turn to the country on the north. Here there lies a grove of trees, marked as the ‘Ragged Shaw,’ and on the farther side stretches a great rolling moor, Lower Gill Moor, extending for ten miles and sloping gradually upwards. Here, at one side of this wilderness, is Holdernesse Hall, ten miles by road, but only six across the moor. It is a peculiarly desolate plain. A few moor farmers have small holdings, where they rear sheep and cattle. Except these, the plover and the curlew are the only inhabitants until you come to the Chesterfield high road. There is a church there, you see, a few cottages, and an inn. Beyond that the hills become precipitous. Surely it is here to the north that our quest must lie.”

“请看地图。这个颜色较深的方块是修道院公学，我插上一根针。这一条是大路。它是东西向的，经过学校门前。你还可以看到在学校的东西两面一英里内没有小路。如果这两个人是沿着大路走掉的话，那么只有这一条路。”

“正是这样的。”

“我们很幸运，可以大致查清，在出事的那天晚上没有什么人走过这条路。在我放烟斗的这个地方，有一个乡村警察从十二点到六点站岗。你可以看出，这儿是东面的第一个一交一叉路口。这个警察说他一直没有离开过他的岗位，并且肯定不管大人还是小孩，只要是经过这条路他不会看不见的。今天晚上我和这个警察谈过话，依我看他是一个完全可靠的人。那么东边就没事了。我们现在看看西边。这儿有一个旅店，店名是'红牛'，女店主生了病。她派人去麦克尔顿请大夫，但是大夫出诊看另一个病人去了，所以第二天上午才到。旅店的人一一夜都很留心，等待大夫到来，并且一直有个人望着大路。他们说没有人走过。要是他们的话可靠，我们可以幸运地认为西面也没有事，由此可见，逃跑的人根本没有走大路。”

我反问道：“那么自行车呢？”

“是的，我们很快就要谈到自行车了。继续我们的推论：如果他们没有走大路，那么一定是穿过乡村向学校的北面或南面去了。这是无疑的。我们衡量一下这两种情况。可以看出，学校的南面是一大片耕地，分成小片，中间有石头墙。我认为在这样的地方是无法骑自行车的。我们可以不考虑南面了。我们看看北面。这儿有一片小树林，标为'萧岗'，再远一点有一大片起伏的荒野，叫做下吉尔荒原，延伸有十英里，地势渐渐增高。霍尔得芮斯府在这片荒野的一边，从大路走有十英里，穿荒野地走只有六英里。那儿是一块特别荒凉的平地。有几座农民的小棚子，他们在那儿养牛羊等家畜，还有睢鸠和麻鹬。除此之外，在你走到柴斯特菲尔德大路之前什么也看不见了。另一边有个教堂，几间农舍和一座旅店。再往远处去，山变陡了，显然我们应该在北面寻找。”