Victor glanced up at the ceiling briefly, thinking through the fake spell she'd just created by combining the word lumos with the well-known swish and flick of a levitation charm. Spell theory was one of his hobbies, as well as a topic deeply relevant to his profession, so this was the sort of riddle he liked. "Well, I think," he began. "That might actually end up setting something on fire — if it did anything at all for a Muggle, that is — so maybe don't give them that unless you've made peace with being responsible for their house going up in flames."

He would have liked nothing better than to have launched in to an explanation of how he'd reached that conclusion. He could have explained the loo sound was repeated in a handful of obscure incendiary charms that used a similar wand motion, and that in general the flick motion in a spell tended to cause more concentrated results than gentler movements. He could have even gotten into the etymology of lumen — but he had long since realized that this sort of discourse was interesting to very few people besides him.

"Only one way to know for sure, though. Should we give it a try?" he asked with a mischievous expression. "I'm a spell damage healer, after all."

---