After a moment then, the captain discovered that the fog was thinning quickly about them.

He was sure that the fog was thinning here as it had back around the ruins.

The fog was thinning in the breeze, piling into banks.

As the fog thinned he could see a dark form in the water, moving offshore.

Then the cliff walls receded, and the fog thinned just a little.

The fog was thinning away under the pressure of an invisible sun.

The fog had thinned somewhat during the last few minutes.

As they stared at the ghostly shape, the fog suddenly thinned.

The fog had thinned; she could see a short way through the trees.

The fog had thinned, and they were coming in on a mesa about half a mile across.