The others gave a low laugh. They could afford not to worry so much now. True, there was one of the cougars still back in the cave, but with their rifles in their hands the lads had little to fear.

"I felt for a minute, though, like I did that time the Mexican devil sprang on me near the gulf village," said Nat, recalling one of his most perilous moments in Lower California.

But there was little time for conversation. Nat had hardly uttered his last remark before the cougar at the rear of the cave began to give signs that it too was meditating an attack. There are few animals that will not fight desperately when cornered, even a rat making a formidable foe sometimes under such conditions, and cornered the cougar unquestionably was.

"She's coming," warned Joe in a low voice, as a rumbling growl resounded above the roar of the storm outside.

"L-l-let her c-c-come," sputtered Ding-dong defiantly.

"Better climb into the car, boys," said Nat in a whispered tone, "we can get better aim from an elevation."

Accordingly they clambered into the tonneau of the motor vehicle, and kneeling on the seat awaited the onslaught which they knew must come in a few seconds.

"I've half a mind to let her go, if we can without putting ourselves in danger," said Nat, "it doesn't seem fair somehow to shoot down a poor brute in cold blood."

"But that poor brute would attack you without hesitation if you lay injured on a trail," Joe reminded him; "these cougars, too, kill hundreds of sheep and young calves, just for the sheer love of killing, for half of what they kill they never touch."

"That's right," agreed Nat, "still fair play is a jewel, and——"