A pale green vapor, it was escaping into the air and beginning to fill the corridor.

"It has vanished in the form of a green vapor apparently," he said.

The screen seemed to be billowing with green vapor.

King Pong's appearance is always heralded by a smelly green vapour.

So with the green vapors coming off your stricken conscience you say you want to go back the way you were!

She speared the demon on her horn, then shoved it into the green vapor.

The green vapor that clung to the walls drifted lazily about the silent chamber.

The second its metal tip cut deep enough to reach the green vapor at his core, that mist ignited with blue flame.

There was no time to stop the presses before the main development of green vapour had overwhelmed everyone.

A soft shell burst; a thick cloud of green vapor rose about the shrouded figure.