"So you are my nephew Percy," said Mr. Pratt when Warrender had gone. "Light the lamp and let me look at you. I don't recognise you. When was our last meeting?"
"About ten years ago," replied Pratt, surprised at his uncle's calm demeanour. "You tanned me for picking one of your peaches."
"Did I?" Mr. Pratt smiled. "You were always a mischievous young ruffian. But how do you come here? Do you bear an olive branch from that cantankerous father of yours?"
"I came through the tunnel," Pratt began, ignoring the aspersion upon his father. Mr. Pratt interrupted him.
"What tunnel?"
"The tunnel between No Man's Island and this tower. Didn't you know of it?"
"I never heard of it before. Who told you about it?"
"We discovered it by accident. My chums and I came for a boating holiday, and camped on the island. We have had----"
"You saw my signals?" his uncle interposed.
"Yes, and----"