The cold tone of threat in her voice was unmistakable.

His cold tone made it clear he wasn't asking for an opinion.

"Now you listen to me," he said to be with a real cold tone that could freeze blood.

"I don't see my father very often these days, sir," Daniel said in what was for him a cold tone.

"Because I don't require understanding," she said, and for the first time there came a cold tone into her voice.

They speak in a cold, mechanical, female tone of voice.

And she did not resent the cold tone of his note.

"You might say that," he answered in the same cold tone.

I couldn't tell if his cold tone was intended for her or me.

The voice was one she expected; the cold tone of the Skull.