His first effort, however, loosened it, and then he began to move it from side to side, still pulling upward, until at last he could feel it rising.

Then, with a great heave, he lifted it entirely out of the square aperture in which it had been fitted, and set it on one side.
In an instant, Ralph, lantern in hand, was gazing down into the opening.

"Hello!" he cried, "there is something on fire in there.

Oh, no," he added quickly, correcting himself, "it's only the reflection from our light.".