I quickly recognized the rolling growl of Huphu, our little noor-beast mascot, expressing gladness by demanding a rumble umble from me right away.

His lips drew back from his teeth, and made a low, rolling growl, like the sound a Rottweiler would make.

That's when the sound came--a rolling growl that exploded into a concussive whummmmp, followed by a pressure drop that made her ears pop.

In the distance, a rolling growl of waves pounded against rock.

When at last they moved apart an inch or so, Jeff's stomach emitted a rolling growl which the Rowan's answered.

There was the rolling growl of thunder.

The voice dropped into the rolling growl of the psychically gifted.

Richard spoke low, his voice fallen to a rolling growl, as if his beast lurked just behind that handsome throat.

Then a plume of smoke wafted out, white in the blackness, followed by a rolling growl.