dresden Flam-mamurus

"Flam-mamurus!"
There was a crackling howl, and fire ripped its way up out of the stones of
the floor. It rippled out from the point of impact in a line running thirty or
forty yards in either direction, a sudden fountain of molten stone that shot
up in an ongoing curtain ten or twelve feet high, angled toward the ghouls
charging us from the far side of the cavern. Blazing liquid stone fell down
over them, among them, and the oncoming tide of screaming ghouls broke
upon that wall of stone and fire with screams of agony and, for the first
time, of fear.