"Just a bigger flame, the protective wards I put down earlier should keep it contained, which should help with the stress test if the heat is concentrated-"
The lines drawn on the ground suddenly sprang to life, constantly shifting and glowing with a sickly green light, not at all like her usual symbols. Wednesday recoiled with a sudden shout of surprise, backing up a few steps just as a bright fire burst from the floor, it's colour the same sickly hue as the glowing symbols, completely engulfing the crucible.
As she said, the flames stay contained within the protective barrier she formed, the flames forming a column of fire as they press against the translucent walls. Then, just as quickly as the flames sprung forth, the column started to collapse in on itself, the unnatural flames sinking into the stone.
The column shrunk more and more until the crucible was visible, but just as the last bit of flame vanished, the glyth on the ground flashed and vanished with a pulse of magic, a thin wave spreading across the ground that disappated just before it reached them, even if the residule energy was enough to make their hairs stand.
Wednesday face had paled, mouth opening and closing wordlessly in confusion.
"I-I uh...what did I just...what..."