Hogfather - Explosion

Ridcully, who'd been standing like a statue, sagged in relief.

'I don't know,' he said, turning away, 'I wish you fellows would show some backbone--'

The fireball lifted him off his feet. Then it rose to the ceiling where it spread out widely and vanished with a pop, leaving a perfect chrysanthemum of scorched plaster. Pure white light filled the room.

And there was a sound. TINKLE. TINKLE FIZZ.

The wizards risked looking around. The beaker gleamed. It was filled with a liquid glow, which bubbled gently and sent out sparkles like a spinning diamond.

'My word . . .' breathed the Lecturer in Recent Runes.

Ridcully picked himself up off the floor. Wizards tended to roll well, or in any case are well. padded enough to bounce.

***

Hogfather - p158