Biff turned and called, "Wait, Chandra. There's a cave here—maybe that's where he went—"

Chandra looked back, and his face froze with horror. He was too startled even to shout a warning, but the look in his eyes, which were staring straight past Biff, told enough. Instinctively, Biff wheeled about, then recoiled as he turned his eyes upward.

From the cleft in the rocky wall loomed a tremendous hulk of reddish brown. Tiny eyes were glaring above wide-open, long-toothed jaws, while massive, sharp-clawed paws clamped downward, inward, toward the boy's dodging form.

Biff Brewster was all but in the grip of a gigantic Tibetan bear, one of the most dangerous creatures that roved those rocky heights!

XVIII
The Frozen Waterfall

All that saved Biff at that moment was the Changpa spear that he had snatched from outside a tent. He had the weapon in his hand, and as he dodged, he jabbed the spear point at the creature from the cave. It was puny compared to the bear's bulk, but it bothered the big beast. Clumsily, the bear batted aside the jabs, and that diverted its action.

Biff now had time to dive away. He flung the spear as he went, but it flew wide. Hardly had it clattered on the rocks before another weapon whizzed past the bear's head: Chandra's hand-axe. Like Biff, Chandra timed his throw too late. The bear was already dropping on all fours, about to lope after Biff. Biff saw that in a glance and began thinking fast.

Bears, though clumsy, could move swiftly and would attack if angered, which this one evidently was. Tibetan bears were death on yaks and sheep; that Biff had also heard. Maybe they'd keep coming after them on ledges like this, so there was no use acting like a sheep or a yak. Biff halted suddenly and flattened himself against the rocky wall, ready to reverse direction if the bear came bounding past.

On the contrary, if it reared, Biff intended to be off again; and while waiting that moment of decision, he took a quick look down toward the campsite. That proved smart indeed. Instead of the area being all but deserted, with everyone asleep, it literally teemed with action. Uncle Charlie and Barma Shah were coming up the slope armed with rifles and followed by half a dozen Changpa tribesmen, all with bows and arrows.

All the other boys were coming, too, apparently shouting as loudly as they could, but the wind was against them, which was why Biff hadn't heard them. They were gesturing, though, and that he understood. Wildly, all were waving for him to keep going along the ledge. That Biff would have done anyway, for just now, the bear had arrived and was rearing for another lunge. So Biff took off again, hoping that the ledge would lead somewhere.