He knew now that his situation was a very serious one, for he had been flung alive into a grave that offered only a slight prospect of escape. He was without food, effectually cut off from the surface of the earth, and none but those who had assaulted him knew that he was buried.
The alternatives that lay before him were plain. He might climb the ladder again to the timber ledge and keep calling for help, or he might attempt to dig a way over the cave-in with his hands and his pocketknife, trusting that the tunnel led to another shaft. The former was a chance pure and simple, and a slender one at that. It was not likely that anybody would pass the mouth of a deserted shaft far up in the hills at this season of the year. But it was quite within the probabilities that the tunnel led to some of the workings of a live property. Many miles of underground drifts were connected by intercepting stopes of adjoining mines. If he could force a way through the cave-in there might be safety beyond. To go moling into such a place without timbering would be a dangerous business, but the crisis was one that justified any risk.
He took stock of his assets. Fortunately he had bought at a lunch counter a ham sandwich to stay his appetite during the night trip. This was still in his pocket, badly mashed but still edible. Five cigars were in the case he carried and upon his person all told he found eleven matches. A little trickle of water ran through the tunnel and gave assurance that he would not die of thirst. His pocketknife was a serviceable one and he had plenty of physical strength.
Jack decided that he would eat half of the sandwich that day and reserve the rest for the second one. His cigars were precious luxuries to be indulged in once every twenty-four hours after he had knocked off work.
He attacked the cave-in with the cool energy that characterized him. Out of a piece of board he fashioned a kind of shovel with his knife. Bits of broken timbering lay at the foot of the shaft. These he dragged into the tunnel for fuel to feed a small fire which he built to give light for the work. All through the night and till noon the following day he dug among the fallen rocks and dirt, cleaning this débris away after he had loosened it with his bare hands.
The impact of the fall when he had been thrown down the shaft had jarred him greatly. With the slightest movement of the body his back and shoulders ached, sending shoots of pain in protest to his brain. The sprained ankle he had bound tightly in a wet handkerchief, but every time his weight rested on that leg he had to grit his teeth. But it was not in him to quit. He stuck to his job till he had done the shift set himself.
At noon he crawled back to the foot of the shaft. He was fagged to exhaustion. For half an hour he lay stretched on his back with every muscle relaxed.
Presently he cut from his coat the pocket that contained the sandwich and divided the mash of ham and bread into two parts. One of these he ate. The other he returned to the coat.
Favoring his ricked ankle as best he could, Jack climbed the wall ladder to the ledge upon which he had found himself lying the previous night. Five minutes' examination of the walls showed him that there was no chance to reach the top of the shaft unaided. He tested the jammed timbers to make sure they were secure before he put his weight upon them. During the next six hours he called aloud every few minutes to attract the attention of anyone who might chance to be passing near.
Toward evening he treated himself to his first cigar, making the most of the comfort that it gave him. When the stub grew short he held it on the small blade of his knife so as not to miss a puff. What was left he wrapped in a pocket handkerchief for later use.