They returned to the long low shack, and were in search of a window from which the boards might be removed, when suddenly Garry said:

"Listen, do you hear the sound of rifle shots?"

Faintly borne on the breeze, came the sound of a distant shot.

"Probably only some youngster from town out after rabbits," said Dick. They waited for a few minutes, and then again was heard a shot, closely followed by two more.

"The forest distress signal. Some one's in trouble boys!" cried Garry excitedly.


CHAPTER XI.

THE RESCUE.

To explain to our readers why the three shots are known as a distress signal is simple. One shot would ordinarily be that of a hunter. Two could be the same thing, provided the man was using a double barrelled shotgun, such as is used in hunting birds. The chances that a hunter would fire three shots in regular succession is very small, hence this is the signal that is the S. O. S. of the woods. It is reported at intervals, and after being heard two or three times, the woods voyager may be sure that someone is in some great difficulty, fallen and broken a leg, or lost in the dense timber.

"It's to the south of us," said Garry, as he wet a finger and held it up to test the direction of the wind. "You see the breeze comes from that direction, and the sound comes with it. Let's take it on the trot, boys."