I did know it; but here we were with our drill racing in pure air, and copious volumes of it pouring into the cabin.
"We couldn't have turned in the ice stratum, Perry, I know as well as you," I replied; "but the fact remains that we did, for here we are this minute at the surface of the earth again, and I am going out to see just where."
"Better wait till morning, David—it must be midnight now."
I glanced at the chronometer.
"Half after twelve. We have been out seventy-two hours, so it must be midnight. Nevertheless I'm going to have a look at the blessed sky that I had given up all hope of ever seeing again," and so saying I lifted the bars from the inner door, and swung it open. There was quite a quantity of loose material in the jacket, and this I had to remove with a shovel to get at the opposite door in the outer shell.
In a short time I had removed enough of the earth and rock to the floor of the cabin to expose the door beyond. Perry was