And as he sat, he could feel a dull vibration on the ground.

The man who had called himself Lassiter was still talking, his voice a dull faraway vibration like jungle drums but she heard and understood.

But far away, through the very ground, he could hear again the dull vibration, like a waterfall.

From farther ahead suddenly came a dull vibration in the rocks.

He could feel the dull vibration of the great iron monster even here through the damp earth.

A dull, subsonic vibration, felt rather than heard, began to emanate from the magnets.

I heard a rattling, a dull vibration, a crunch of cracking wood.

There are voices and the dull vibration of the busy stairs.

I could hear throughout the hold a dull vibration.

There was the dull vibration of the big front door slamming shut.