The man didn't answer, but seemed instead to retreat still further.

The man retreated further from his side of the wall.

He found it necessary to retreat further down the stairs.

Three Above, that they'd been forced to retreat this far!

One wrong word and she'd retreat further, mentally if not physically.

He marked their going in the bush glow, but they did not retreat far.

Those Italian forces must not retreat farther, that was certain.

Then with a gesture he retreated further still, to where the boy had left his pack.

But now he could retreat no further, even if he wanted to.

If the storm got too bad, they could simply retreat further into the cave, and remain dry.