A faint droning sound drifted to him on the cold wind as the ground levered off and he was about to pick up his pace.

A droning humming sound had started up, off behind him someplace.

At that moment there was a strange droning sound, and a cry from the circle of leroni standing hands joined in the garden.

A droning sound started low and crescendoed until the weapon came forward, slicing through the air.

An awful droning sound vibrated deep under her ribs.

The flies had arrived in force, and their droning sound filled the confined space.

She stopped as a heavy droning sound filled the air, and, looking up, she saw a squadron of airplanes approaching from the north.

All of the metal surfaces vibrated in concert with the faint droning sound that had long ago become a comforting friend to him.

At 3.45 am, a local woman was woken by a terrible droning sound.

But then a strange droning sound came to his ears.