There was also a darker muttering.

There have been dark mutterings of police collusion and apathy.

She had heard dark mutterings about him but after a few minutes of talking with him she was ready to put it down to common envy.

I heard enough dark mutterings to know this rather penal hole was not one of the players' favorites.

Nevertheless, the orchestra played it scrupulously, letting its dark mutterings speak for themselves.

Everywhere there were dark mutterings about global warming.

I'm just not sure why on earth anyone would bring it up with such dark mutterings as:

"And it's not much more frustrating than the vague hints and dark mutterings in Eloise's last few letters to me, either," he added pointedly.

There have been dark mutterings by conspiracy theorists about the election result.

From now on several of the men had only black looks and dark mutterings at any mention of their former commander.