“We’ll have to fight for it!” called Dr. Gresham. And our hands flew to our revolvers.

But before we could draw the weapons a great ripping and crashing sound burst forth upon the mountainside above us—the terrifying noise of rocks splitting and grinding—an appalling turmoil! Terrified, pursued and pursuers alike paused to glance upward.

There, in the brilliant moonlight, we saw a monster avalanche sweeping downward, engulfing everything in its way!

Abandoning the astronomer and myself, the Chinamen turned to flee further from the path of the landslide—and we all began running together down the valley.

Only a few steps had we gone, however, when above the roaring of the avalanche a new sound rang out—short, sharp, booming, like the report of a giant gun.

As I glanced about through the blotches of moonlight and shadow, I saw several of the sorcerers just ahead suddenly halt, stagger and then drop from sight.

Dr. Gresham and I stopped instantly, but not before we beheld other Chinamen disappearing from view.

The earth had opened and they were falling in!

Even as we stood there, hesitating, the black maw yawned wider—to our very feet—and with cries of horror we tried to stagger back. But we were too late. The sides of the crack were crumbling in, and in another instant the widening gash overtook us.

As his eyes met mine, I saw the astronomer topple backward and disappear.