stormed the stranger. "I've got to be there in time to catch that train."
"There isn't any train at ten-thirty, and we know it. We're going to turn back to Barmet and you'll have ample time to catch the noon train after that."
The stranger gritted his teeth and half rose from his seat. Then he sank back, as though realizing that he was going beyond his rights by objecting.
"A nice trick to play on me!" he snapped. "Bringing me this far and then turning back."
"Your friends on the shore seem anxious to have you back, for some reason or other."
Frank bore down on the wheel and the Sleuth slowly began to circle about.
Suddenly the voice of the stranger rasped right at their ears:
"Don't turn this boat around! Keep heading for Bayport."
Startled, they turned. The stranger was standing right behind them, and in his hand he clutched a revolver that was aimed directly at them!
