As he took in these details, Bob realized with a new clearness how Chang-Wo had made himself a power and terror in the land. With such a fastness to fall back upon, and supported by a numerous band of desperadoes, he could defy Russian and Chinese alike; it was easy to understand that neither had been eager to try conclusions with him. The fort was so situated and so massively constructed that it might mock at any attempt at capture, short of a regular siege enforced by heavy artillery.
Yet it might be in this solitary mountain stronghold, the lair of the Mountain Tiger, that, dead or alive, Kobo San lay. As Bob let his eyes dwell on it with anxious care, he felt his heart sink within him. What had he come for? What could he do, with two helpers however willing, however earnest, to rescue Kobo if Kobo was indeed immured within those strong towers? How could he discover whether his friend was there? The strength of Samson could not tear down those massive walls; the wiles of Ulysses could not avail to win entrance through that single gateway; only an eagle could ascend from the depth of the ravine, and even had he eagle's wings he would ascend in vain. Why had he come on this wild enterprise? Now that he had seen with his own eyes, what remained to him but to acknowledge the hopelessness of his quest, and quit this region of tyranny and death?
Long he mused, weighed down by a despair more bitter than had burdened him when he lay under sentence of death at Antung. He felt a strange certainty that Kobo was there a prisoner, and alive; humanity, gratitude, affection combined to produce an intense longing to save his friend, yet even his longing was clouded by a sense of powerlessness, his activity seemed paralysed.
Ah-Sam had been watching him out of his slant expressionless eyes. For a time he stood by his master mutely, noting every shade of feeling that flitted across his tired face. At last he touched him lightly on the arm.
"Massa no can do not'ing. Allo wailo this-tim'."
Bob started as if stung. The words were but the echo of his own despair, yet they provoked him to almost violent repudiation.
"Impossible!" he said. "Nothing is impossible. We have ourselves done things people would have said impossible. At the gully--at the temple! What has been done can be done again. I am going into the fort. When it begins to get dark I shall go and find out a way. We haven't come all this distance to go back without making an effort. We'll have a try, Ah-Sam,--a try, anyhow."