"The East windows of the house overlook the locust tree," I went on. "Station yourself at one of them with your glasses, and you will be able to see whatever happens at the tree."

"I get you," he said. "What about the other two cars? One of them is just turning into the yard now."

"Let them leave Ringstead by Merton street," I said, consulting my map, "and proceed East to the Joppa Pike; thence North to the Suffolk pike and turn back towards Greenwood City. About two miles and a half before reaching the village, more than a mile beyond the house where you will be, there is a small wood on the left hand side of the road. There is a wagon track leading into it. They are to turn in there and they will find me a little way inside."

"All right," said Lanman. "The last car is coming now."

"Listen," I said. "Our man without doubt will come in a car. After he picks up the keys I expect he will keep on in the road. In which case he falls into my hands. But if he should turn around and go back it's up to you."

"I understand," said Lanman grimly.

Ten minutes later I was back at my observation post at the edge of the wood. I had not been there long when through my glasses I saw a car turn into the farmer's place. A second and a third car followed at short intervals. In a quarter of an hour the first police car joined me, and a few minutes afterward the second. Each contained two men in addition to the chauffeur.

We turned the cars around and stationed them in line where, though they were invisible from the highroad, they could run out upon it in a few seconds. The other side of the highway was fenced. Having completed our arrangements, there was nothing to do for a while, and I told the men to take it easy.

According to my calculations Blondy would appear in view about one-thirty. It was a long walk from the station and a hot day. Exactly on schedule I saw a speck in the distance which presently resolved itself through the glasses into the figure of a solitary pedestrian. As he neared the tree I saw that it was Blondy. So far so good.

I was lying on the ground at the edge of the little wood with the glasses steadied on a fallen trunk. The whole flat plain was spread before me. The cars were about thirty yards behind me, each chauffeur at his wheel. Between me and them I had the four men stationed at intervals so I could pass a whispered order back.