At the same moment the car gave a lurch.

"Just what I thought," commented Nat, in a despairing voice, "they've winged a tire."

"Shall we have to stop?" asked Cal rather apprehensively, although a grim look about the corners of his mouth betokened the fact that he was ready to fight.

"Den maype I gedt idt a pigdure, aind idt?" asked Herr Muller, with what was almost the first free breath he had drawn since Master Bell slashed the rope.

"Good Lord!" groaned Cal in comical despair, "my little man, if those fellows ever get us you'll be able to take a picture of your own funeral."

"How would dot be bossible?" inquired Herr Muller innocently, "if I voss a deader I couldn't take my own pigdure, aind't idt?"

But before any of them could make a reply, indignant or otherwise, a sudden occurrence ahead of them caused their attention to be diverted into a fresh channel. The cattle, terrified at the oncoming auto, had stopped grazing and were regarding it curiously. Suddenly, one of them gave an alarmed bellow. It appeared to be a signal for flight, for like one animal, the herd turned, and with terrified bellowings, rushed madly off into the pine forests on the eastern side of the valley.

This was a fortunate happening for the boys, for the cowpunchers were now compelled finally to give up their chase of the automobile and head off after the stampeded cattle.

"I reckon we'd better not come this way again; it wouldn't be healthy-like," grinned Cal, hearing their shouts and yells grow faint in the distance as they charged off among the trees.

"There's one thing," said Nat as he brought the crippled auto to a halt a short distance off, "they won't worry us for some time."