This almost immediately developed into separate units, as the dogs rushed directly into the camp. Max could see that there were no two alike, and in the lead was a mastiff as large as any wolf that ever followed in the wake of a wounded stag, a tawny colored animal, with wide-open jaws that must have filled the watching girls with a sense of abject horror, even though they were apparently safe from attack up among the branches of the tree.

Max had eyes for no other after that. Let his chums and Shack Beggs take care of the New Foundland, the Irish setter, the beagle, the rabbit hound, and several more, even to a sturdy looking squatty bulldog that must have used his short bowlegs to some advantage to keep pace with the rest of the pack; his duty was to meet the oncoming of that natural leader, and wind up his career.

The five boys had stationed themselves partly in front of the shelter where all of their food supplies had been placed, though at the same time they stood between the tree and the rushing dogs.

Straight at them the pack went, helter-skelter. It may not have been so much a desire to attack human beings that animated the animals as the keen sense of smell telling them that provisions were to be found back in that rustic shack.

Max waited until the big leader was almost upon them before he started to use his automatic. Indeed, one of the girls in the tree, gasped his name in terror, under the impression that Max may have been so petrified with astonishment at sight of the size of the mastiff that he could not pull the trigger of his weapon.

But it was not so, and Steve, who was alongside, knew it full well, because he could hear Max saying steadily all the while:

"Hold firm, boys; don't get rattled! I've got that big thief potted! Steady now, everybody; and hit the line hard!"

That was the encouraging way Max used to call out to his players on the high school eleven when they were fighting for victory on the gridiron with a rival school. It did much to nerve those who heard; and Steve especially needed some such caution to keep him from springing to meet the coming attack halfway.

Then there sounded a peculiar snapping report. It was the automatic doing its duty. Firm was the hand that gripped the little weapon, and unflinching the eye back of the same.

A shriek from the tree told that the girls were watching every move in the exciting game that was being played. The mastiff was seen to stop in his headlong rush, and roll over in a heap; then he struggled to his feet again, only to have another flash directed into his eyes; and this time Max must have made sure work of it, because the huge animal did not attempt to rise again.