The gas was still hissing through the nozzle.

The Master Spy had no more time to waste, for that deadly gas was still hissing into the room.

The ice melted and flowed into the waiting sea beds; gases hissed into a cloak about the planet.

The gas hissed out of the jets, rank and yet cooling.

When she touched a button, gas hissed through the tube, carrying with it the pungent odor of melange.

The gas hissed and Max struggled, as I knew she would.

As the gas hissed through the hole the first man methodically set plastique charges on the vault door.

He turned his mobility unit jets up to full, and hot gas hissed forward, past him.

The gas hissed gently in the single light that was still burning.

Suddenly gas hissed into the room from barred vents.