The whole massive rock began to turn outwards as though upon a pivot! I saw it coming and grabbed Bickley by the collar, dragging him back so that we just rolled clear before the great block, which must have weighed several tons, fell down and crushed us.

Tommy saw it too, and fled, though a little late, for the edge of the block caught the tip of his tail and caused him to emit a most piercing howl.

But we did not think of Tommy and his woes; we did not think of our own escape or of anything else because of the marvel that appeared to us.

Seated there upon the ground, after our backward tumble, we could see into the space which lay behind the fallen step, for there the light of the sun penetrated.
The first idea it gave me was that of the jewelled shrine of some mediaeval saint which, by good fortune, had escaped the plunderers; there are still such existing in the world.

It shone and glittered, apparently with gold and diamonds, although, as a matter of fact, there were no diamonds, nor was it gold which gleamed, but some ancient metal, or rather amalgam, which is now lost to the world, the same that was used in the tubes of the air-machines.