Bert heard him approach and stopped him with a sharp whisper.

A sharp whisper made them stop very suddenly.

"We made a bargain with them," she said, her whisper sharp and angry.

In a sharp whisper, he said, "Get away from here.

A voice sounded in her helmet; a sharp, sibilant whisper.

"I am he whose name is never said aloud," said the girl in a sharp whisper.

She started to her feet immediately and was about to reach for him when the Doctor's sharp whisper interrupted her.

He turned on her and in a sharp whisper told her, "They burnt it."

"You're the one who annoyed me," the knight answered in a sharp whisper that carried across the water.

"Mercy," Andrea said, her sharp whisper cutting through the darkness.