"I think that we have to get a look at this fellow and let him know that after a certain date we shall be obliged to let the Canadian Government know what is going on. Otherwise, if the Canadian Police run down this fellow, they may find out that we have been here and then arrest us as accomplices," said Bob.

"The boy's right," said Jack. "And it would be a hanging job for us if they proved that we knew what was going on here and did not notify the constable."

Further conversation was cut short by a shot outside, followed almost immediately by another. Hurried footsteps were heard and a big fellow rushed in and closed the door.

"Hands up!" cried Mr. Waterman, as he leveled his gun at the stranger. The latter made a quick movement, but a spurt of flame from Jack's rifle was followed by the clatter of the stranger's rifle as it fell to the floor. Coming in from the outside, the newcomer seemed to be unable to see clearly.

"Disarm him," said Mr. Waterman to Jack, who moved over and removed a revolver from the hip of the owner of the hut.

"Well, what is it?" asked the man defiantly. "It took you a long time to find out this little place, didn't it?"

"We're Americans," said Mr. Waterman. "It is quite plain to any one of intelligence what you are here for. At the same time, I'm very much mistaken if you're not an American yourself, or at least passed for such until this war broke out. You know too much about the woods to be a native born German."

"You're right," said the man, as he lowered his arms. "I'm from the West, and I'm an American, but in the pay of Germany—and have established my post here."

"You, of course, know that you must get out of here at once," continued Mr. Waterman. "I don't think that it is our duty to take you in, though Pierre, who is just coming, is a Canadian. There is the other door. Here's your gun. We'll hold Pierre for a few minutes and then let him do what he thinks best."

"You're all right, men. I thought that the Canadian police had me, as they probably have my companions."