guarded against. They shortly came to one and had to stop. It might be three feet deep, it might be a hundred—there was no passing it at any rate. Tom got down on his breast and reached as far down as he could. No bottom. They must stay there and wait until the searchers came. They listened; evidently the distant shoutings were growing more distant! a moment or two more and they had gone altogether. The heart-sinking misery of it! Tom whooped until he was hoarse, but it was of no use. He talked hopefully to Becky; but an age of anxious waiting passed and no sounds came again.
The children groped their way back to the spring. The weary time dragged on; they slept again, and awoke famished and woe-stricken. Tom believed it must be Tuesday by this time.
Now an idea struck him. There were some side passages near at hand. It would be better to explore some of these than bear the weight of the heavy time in idleness. He took a kite-line from his pocket, tied it to a projection, and he and Becky started, Tom in the lead, unwinding the line as he groped along. At the end of twenty steps the