Some stones and loose earth fell down and rattled on the railway metals far below.
"It's ALL coming down," Peter tried to say, but he found there was hardly any voice to say it with.

And, indeed, just as he spoke, the great rock, on the top of which the walking trees were, leaned slowly forward.

The trees, ceasing to walk, stood still and shivered.

Leaning with the rock, they seemed to hesitate a moment, and then rock and trees and grass and bushes, with a rushing sound, slipped right away from the face of the cutting and fell on the line with a blundering crash that could have been heard half a mile off.

A cloud of dust rose up.
"Oh," said Peter, in awestruck tones, "isn't it exactly like when coals come in ?--if there wasn't any roof to the cellar and you could see down." "Look what a great mound it's made!" said Bobbie.
"Yes," said Peter, slowly.