When the beam finally buckled, the vaulted fretwork around the station's old ticket windows crashed down with a sustained roar.

It spread through the dry foliage, crackling and popping, growing until it became a sustained roar, like an oncoming train.

Somewhere far below an explosion rumbled through the bowels of the dead ship, the detonation sharp at first, then settling into a sustained roar.

Suddenly he saw white, and heard a sustained roar.

It was racing toward them at perhaps fifty miles an hour, roaring with a deep, sustained roar and the sheer front of it seething and boiling.

They heard a vague sound ahead, and as they advanced toward it, it increased in volume, becoming a sustained roar.

From four thousand throats a savage sustained roar rose and went on and on without diminution.

The sound of Magma became a sustained roar, deafening the world with its power.

That changed the momentum, and 5:01 later, Mellanby's second goal prompted a sustained roar from the crowd.

A sustained roar of cheering arose in the rear, loud enough that the sergeant could hear it even over the incredible, ear-splitting din engulfing him.