on the outside of the cavern the boys halted. after the shock both were comparatively calm. their faces were pale, and they compressed their lips with resolution. some time during the preceding few hours thieves had entered their home and carried away one hundred thousand dollars in gold dust and nuggets, and the youths were determined to regain the property, no matter what danger had to be confronted.
but the common sense of the boys told them the surest way to defeat their resolve was to rush off blindly, with not one chance in a thousand of taking the right course.
"roswell, that gold weighs so much that no one and no two men could carry it off, unless they made several journeys."
"or there were more of them; they would hardly dare return after one visit."
"why not? hardman (for i know he is at the bottom of the business) and the other rogue have been watching us for several days. they knew that when we left here in the morning we would not come back till night, and they had all the time they needed and much more."
"but if there were only two, they would have to keep doubling their journey, and i don't believe they would do that. perhaps they used the donkey."
"let's find out."
the burro was accustomed to graze over an area several acres in extent and enclosed by walls of rocks. since the first-mentioned brook ran alongside, the indolent creature could be counted upon to remain where the pasture was succulent and abundant. the place was not far off, and the boys hurried thither.
a few minutes later the suggestive fact became apparent—the donkey was gone.
"and he helped take the gold!" was the exclamation of frank. "they loaded part of it on his back and carried the rest. i don't believe they are far off."
it was certain the thieves had not gone in the direction of the diggings, and it was improbable that they would attempt to reach dawson city, at least, for an indefinite time, for they must have known that jeff graham and tim mccabe had gone thither, and that there they were likely to be seen and recognized. at any rate, it would be hard for them to get away through the town for a considerable period, during which the grim old miner would make things warm for them.
the conclusion of the boys, therefore, after briefly debating the problem, was that the men had turned into the mountains. these stretched away for many miles, and contained hundreds of places where they would be safe from pursuit by a regiment of men.
"but if they took the burro," said roswell, "as it seems certain they did, they must have followed some kind of a path along which we can pursue them."
"provided we can find it."
they were too much stirred to remain idle. frank led the way to the corner of the enclosure which was bisected by the brook. there the moistened ground was so spongy that it would disclose any footprint. the marks made by the hoofs of the burro were everywhere, and while examining what seemed to be the freshest, roswell uttered an exclamation.
"what is it?" asked his cousin, hurrying to his side.
"do you see that?" asked the other in turn, pointing to the ground.
there were the distinct impressions of a pair of heavy shoes. the burro had been loaded at the brook, or his new masters had allowed him to drink before starting into the mountains.
the tell-tale footprints.
the tell-tale footprints.
the boys took several minutes to study the impressions, which appeared in a number of places. the inspection brought an interesting truth to light. one set of imprints was large, and the right shoe or boot had a broken patch on the sole, which showed when the ground was more yielding than usual. the others were noticeably smaller, and the toes pointed almost straight forward, like those of an american indian. a minute examination of the soil failed to bring any other peculiarity to light. the conclusion, therefore, was that only two men were concerned in the robbery.
the problem now assumed a phase which demanded brain work, and the youths met it with a skill that did them credit. the question was:
"if the burro was loaded with the gold at this point, or if he was brought hither, which amounts to the same thing, where did he and the thieves leave the enclosure?"
neither of the boys had ever felt enough interest in the animal to make an inspection of his pasturage ground, and therefore knew nothing about it, but scrutinizing the boundaries, they fixed upon two gaps or openings on the farther side, both leading deeper into the mountains, one of which they believed had been used.
"let's try the nearest," said roswell, leading the way across the comparatively level space.
there the ground was higher, fairly dry and gravelly. a close scrutiny failed to reveal any signs of disturbance, and forced them to conclude that some other outlet had been taken. they made haste to the second.
this was drier and more gravelly than the other. while the soil seemed to have been disturbed, they could not make sure whether or not it was by the hoofs of an animal, but frank caught sight of something on a projecting point of a rock, just in front. stepping forward, he plucked it off, and held it up in the light. it consisted of a dozen dark, coarse hairs.
"that's where the burro scraped against the rock," he said. "we are on their path."
in their eagerness they would have kept beside each other had not the passage been so narrow. often they came to places where one would have declared it impossible for a mule or donkey to make his way, but there could be no question that the property of jeff graham had done it. frequently he slipped, and must have come near falling, but he managed to keep forward with his precious load.
less than two hundred yards distant the pursuers came to a depression of the soil where it was damp, and the footprints of the donkey and the two men were as distinct as if made in putty. there could be no question that the boys were on the trail of the despoilers.
as they advanced, frank, who was in advance; frequently turned his head and spoke in guarded tones over his shoulder to his cousin.
"they are pushing into the mountains," said he, "but there's no saying how far they are ahead of us."
"no; if they made the start early in the morning, it would give them a big advantage."
"i believe that is what they did, knowing there was no danger of our returning until night."
"that knowledge may have made them slow. anyhow, they are not travelling as fast as we, and we must overtake them before long."
a few minutes later frank asked:
"do you believe they have thought of being followed?"
"they must know there is danger of it. they will fight to keep that gold, and if they get the first sight of us will shoot."
"they may have revolvers, but i don't believe either has a rifle. we will keep a lookout that we don't run into them before we know it and give them the advantage."
this dread handicapped the boys to some extent. the trail was not distinctly marked, often winding and precipitous, and compelling them to halt and examine the ground and consult as to their course.
while thus engaged, they awoke to the fact that they had gone astray and were not following the trail at all.
