“What?”

“When we get to Main Street, you, Ken, will turn right, wave to us, make believe as though you are saying goodbye. Jack and I will turn left and pretend that we are going home. But instead of actually walking off, Ken, you will dash into a doorway and watch to see if anyone is following us.”

“And if there is?” asked Ken.

“Then you will follow him, naturally,” was Paul’s answer.

“And if there is not?”

“Then you will take a roundabout route and meet us in my house in about half an hour.”

“All right. I’ll do that.”

At Main Street, the group parted, one boy walking off in one direction, while the other two headed in the opposite direction. Ken, just as soon as he parted from his companions, walked to the second store from the corner, a haberdashery, and stared at the window display. Actually, however, his eyes were roaming elsewhere and he was carefully watching the corner. Some people came out of Water Street, but by the look on their faces, by their general appearance and by the fact that they seemed to know exactly which way their direction lay, Ken knew that it was not any one of them. Suddenly he caught his breath. A robust man of medium height emerged from the street and paused at the corner. He wore a light jacket and a Panama hat, the brim pulled down over his forehead.

After standing hesitantly on the corner, he turned left, seemingly bent on following Paul and Jack. Ken crossed the street and followed. The chase continued for several blocks, the man increasing his pace and Ken doing likewise. The two boys were just ahead, crossing Chestnut Street. As the man came to the corner, he turned. Ken stopped at a corner store and looked at the window display. He watched the man walk to the middle of the block and then turn into the yard of a private house. Ken scratched his head and wondered.

The two boys were awaiting him. As Ken came up the walk to the porch, Paul asked, “Well?”