They wore slouch hats and were wrapped in heavy, dark cloaks.

They stood with their backs to him, and although they seemed to be taking no part in the management of the crossing, they watched everything intently.

Two of them were very tall, but the third was shorter and slender.
The moon brightened presently, and some movement at the ferry caused the three men to turn.

Harry started and checked an exclamation at his lips.

But the watchful mountaineer had noted his surprise.
"I guess you know 'em, Harry," he said.
"Yes," replied the boy.