"I must win," he mumbled aloud.

He realized he'd been mumbling aloud.

Mother lay against the back of the elevator, putting on her clothes, mumbling aloud to herself, crying, wiping at her face.

Flint mumbled aloud as he hastened down the final long tunnel leading to the beautiful cavern at the farthest corner of Mudhole.

"Fine," she mumbled aloud, to what he had said.

"It could work," he mumbled aloud.

We have to go back," she mumbled aloud, and led the obedient Jena back toward the beach.

He mumbled aloud, trying to determine the meaning.

"It's akey, " he mumbled aloud, knowing it to be true.

He mumbled aloud in Old Persian a bit, which seemed to brace him, then slammed it shut.