He waited till he saw the wretches within a yard or so of this spot, then pushed this boulder.

It roared and crashed and bounded, and before it reached the narrow pathway Bruce had started a mate to it.

Then a third followed.

This caused a terrific slide of rocks and boulders, and the brigands turned for their lives.
"That will be about all for the present," said Bruce, wiping his forehead.

"Now if we can make that village we shall be all right.
Bala Khan's men will not leave with the camels till they learn whether we are dead or alive.