"Beware of how you talk, young man," said Umbezi in a grave voice.

"My friends," began the senator, in a grave voice, "this is a most impressive and important occasion."

"I love the abandonment of their sleep," she said to her visitors in a grave voice, smiling down.

Another time Reith thought to hear grave voices speaking, at not too far a distance.

"Too late," a deep, grave voice said above them both.

"Our task is far from done," said the grave voice of Adaon.

He waited a minute and then repeated in a grave voice.

"This has been going on for years," a grave voice warns.

"I'd rather not be the bearer of ill news," the alien said in his quiet, grave voice.

It was the grave voice of the family lawyer.