Moments later, a gentle thud announced that they had settled on the sea floor.

They sat down with a gentle thud, and the umbilicals began to whir.

Inside the crate, Jam felt a little lurch and then a gentle thud.

There was a gentle thud as they sat down.

A gentle thud made him open his eyes.

The others nodded, and Isambard let the hatch close again with a gentle thud.

His legs crumpled beneath him as he landed in soft earth at the edge of a field, without making more sound than a gentle thud.

Then with a gentle thud she fell to the ground again.

At that moment he heard a soft grunt and a gentle thud.

With a gentle thud the trolley received its precious burden.