course for the
archer. The latter fitted his arrow with great care and then
straightening up drew back the string and slowly levelled, the missile
at the head and breast of the American.

"Does that fool imagine I am going to keep still and let him practice
on me?" the latter asked himself, an instant before discharging his
rifle, whose bullet went straight through the dusky miscreant and sent
him toppling off the side of the ledge as dead as dead could be.

Not only that, but the ball wounded the warrior directly behind him,
causing him to utter a howl which rang with piercing force from side to
side of the cavern of diamonds.

This prompt act caused something like a panic, Ziffak seemed the most
terrified of any. Facing about, he flung his arms aloft and shouted to
the rest to hurry away before the white man killed them all.

They lost no time in obeying, and it was noticeable that King Haffgo,
being well at the rear, added his frenzied commands for his warriors to
lose no time in leaving the fatal spot.

Ashman could have sent a succession of shots along the ridge, as the
party scrambled away, which would have toppled the dusky barbarians off
like so many ten-pins; but he had no desire to inflict needless
slaughter, and, in answer to the appeal of the shrinking Ariel, he had
promised her that, so far as he was concerned, her parent should
receive no harm.

He therefore contented himself with watching them, until a bend in the
ledge hid them from sight, with the exception of their heads, and they,
too, soon disappeared; because the frightened warriors, glancing back,
and seeing their peril, crouched low to escape the bullets which they
seemed to expect would come whistling about their crowns.

As long as the natives kept at such a distance, they could do no harm
to the defenders; for they were too far off to make use of their
javelins, and the single archer left was not likely to attempt to bring
his weapon into play.

Naturally, Ashman and Ariel, finding they were left to themselves for a
time, fell to speculating upon what was likely to be the next move of
their enemies. He believed they would make an attempt to bridge the
chasm separating them, a task which, as will be seen, was comparatively
easy of accomplishment.

But should such a structure be laid, it must be so strait that only one
could pass at a time, and the American could pick them off as often as
they presented themselves. There were now