Behind, some of the men had fallen to their knees and taken deliberate aim at the flying riders, and the sharp crack, crack of the weapons continued for several seconds. Bullets flew near, but not one struck home.

Out of revolver shot, Hal and Chester drew up their horses to take stock.

"Any one hit?" demanded Hal.

There was no reply.

"All right," said Hal, "we'll move on again."

Colonel Edwards, glancing to the rear at that moment, called:

"Here they come!"

The others looked back.

It was true. With loud shouts and waving their revolvers aloft, almost a dozen men galloped forward.

There came a cry of alarm from Stubbs, in the center of the little troop.