He saw that the smoke was issuing from cracks at one side of the bookcase's back.

Jets of bright fire shot from cracks in the ground, preventing escape.

From cracks and crevices everywhere, small things emerged, coming toward her.

The mist seemed to arise like steam from unseen cracks among the rocks.

But on closer inspection, it needs serious work, from cracks in the limestone to water damage.

What little light there was came from cracks in the broken rock of the cavern's roof.

Water leaked down the walls from cracks in the polyp.

Here it was darker, the only light coming from cracks in the floor above.

Rock dust drifted down from cracks forming in the ceiling overhead.

They seemed to come out of nowhere, from cracks in the walls, from shadows.