4 Metaphors for cracking

It seemed to me, that each crack and creak was the coming of one of those Things along the dark corridors; though I knew in my heart that this could not be, for I had seen, myself, that all the doors were secure.

We stopped to consider, and found that the cracks in the ice we were on were the rise and fall of a swell.

The deepest earthquake-crack in the world is the valley of the Jordan, ending in the Dead Seaa long valley, through which at different points the nether fires of the earth even now burst up at times.

Commonly accompanying quarter-crack is the condition of contracted heels and atrophied frog.

4 Metaphors for  cracking