The thudding sound of a machine below grew louder and more oppressive.

In the fog-filled air their voices made a thudding sound.

Susannah opened her mouth to say something about it, but before she could, that low thudding sound came again.

A thudding sound came from the dump like a box being overturned.

His weight made a single thudding sound within, and then the door had slashed open.

Concentrating on one spot, he had dug three feet into the ground when his pick brought a thudding sound, like that of the night before.

There was a second scream and a third which merged with some thudding sounds.

Its thudding sound built in a moment to explosive volume.

But the dull little thudding sound was proceeding from the Sword, all right.

From a great distance away, a slow thudding sound began to intrude itself.