By now it had become dusk and Paul thought that it was time to take up some hiding position and watch. The next moment he changed his mind. Instead of hiding anywhere, he nonchalantly took up a position across the street and pretended that he was waiting for someone. He didn’t have to wait long. Pretty soon he saw Mr. Grey emerge from around the corner and walk up Main Street. He wondered where the man was going and what he might be up to. For several seconds he debated with himself whether to follow him or to wait, as he had previously decided, for the grocery man. He chose to wait. About fifteen minutes later he saw his man come out from the rear of the house. “Very clever,” he thought to himself.
The grocery man came to the corner and stopped, looked around and then walked off down Jones Street. Paul wanted to follow but on second consideration he realized that the street was deserted and he would instantly be noticed. He had a hunch, however, that the man’s walking down Jones Street was done on purpose to detect anyone following. Paul ran to the next parallel street and raced to come to the corner first. He hid in a doorway and saw his man round the corner and continue walking on the street parallel to Main Street. This part of the town was rather empty and deserted. He therefore decided to let his man walk at least two hundred and fifty yards ahead of him.
Soon the street became busier, with many people strolling up and down. Paul gradually narrowed the distance between himself and his man. They came to about the centre of the town. Suddenly he caught his breath and his heart began to beat rapidly. He saw Mr. Grey walking the other way, and as the two men passed each other, there was a slight movement of the head on the part of both of them. So they did know each other! So there was some connection between the two! Paul thrilled with the excitement of it.
At the next corner, the grocery man turned in and headed for Main Street, where he turned right and walked straight ahead for several blocks. At about the middle of the street he joined a group of three men who were standing to one side and talking quietly among themselves. Paul crossed to the other side of the street. Pretending that he was looking at a window display, he was actually studying the group of four men. As far as he could tell, they were not native townspeople; everything about them looked as though they came from somewhere else; possibly from a large city. Two of them were very ordinary looking—of average size and wearing the usual summer clothes. The third person was a tall, fat individual, with a big head and a double chin. One thing was common for all three; they all were rather hard looking. Such was the trio that the grocery man had joined.
It was evident that they had a lot to say to each other, for they talked for some time, while people passed up and down and paid no attention to them. Paul decided on a bold step. Walking down a bit, he crossed over and, falling in behind a group of strollers, he passed close to the group of conspirators. But they talked in such low tones that he could not overhear a word they said.
Not seeing any other opportunity of overhearing their conversation, Paul crossed over again, pretended that he was looking at a window display and walked down to the corner and back again. But every second he kept an eye on that group. Finally after about half an hour, the group broke up into twos. The big, fat fellow with one of his companions walked south, while the grocery man and the third of the trio walked north on Main Street. Paul decided to follow the grocery man and his companion.
They walked straight ahead for several blocks, then, very nonchalantly rounded the corner and disappeared. Paul felt the thrill of excitement grow on him; something hot and exciting bubbled inside of him. They had turned into the street on which the empty house was situated. He thought of Ken and Jack and their being on guard. But just then Jack’s well founded hunch occurred to him; perhaps there was a secret entrance and they would not use the front door of the house. He peeked around the corner and saw his men turn off at the next crossing. “Good!” he thought to himself. They were not fooling him; it was their intention to take a roundabout route to throw anyone off their trail if they happened to be followed.
At a rapid pace, he took a direct route to his destination. He did not intend to go to the house; if anything happened there, it was up to Jack and Ken to take care of that and he knew that he could trust them. His intention was to take up such a position that they would have to pass him. If they did not head for the house, then he would follow them and spy out the secret entrance to the house.
There were only three possibilities for a secret tunnel to the house, Paul reasoned with himself. It might be on either side or to the rear of the house. The most probable one was at the rear of the house because that afforded a direct connection with very little space intervening between the two cellars. It would be a simple thing, he thought to himself, to dig and fortify such an underground passage.
Paul hid in a doorway and waited for his quarry to come along. In time they did and passed within two feet of him. They were silent and walked as though they were out for an evening stroll. Paul hesitated ere he ventured out of his hiding place. The neighborhood was still and dark. If he dared to follow and keep them in sight, he would very easily be detected; he might have a running chance to escape, but that would give him away and they, on the other hand, would then realize that they were being suspected.