I shook my head.

"Too many," I said. "Besides, we couldn't concentrate them in the time."

"How many could you?"

"Four," I said; "if I can get back to my boat on Monday, we'll have them there on Thursday."

Tiel produced a bottle of whisky and syphons and we sat over the chart discussing details for some time longer. It was finally handed over to me, and Captain Ashington rose to go.

"By the way," I said, "there is one very important preliminary to be arranged. How am I to get back to my boat?"

"That will be all right," said Tiel confidently; "I have just heard from Captain Ashington that they have arrested the wrong man on suspicion of being the gentleman who toured the country yesterday. The only thing is that they can't find his cycle. Now I think if we could arrange to have your motor-cycle quietly left near his house and discovered by the authorities, they are not likely to watch the roads any longer."

"I'll fix that up," said Captain Ashington promptly.

"How will you manage it?" I asked.

"Trust him," said Tiel.