Snape began his lesson with a loving rendition of how potions could do anything you could ask, and concluded with a rapidfire interrogation of both Inverses.
“Mr. Inverse. What would I get if I added powdered root of asphodel to an infusion of wormwood?”
Harry frowned. “I’m not certain, sir. I think they’re both used in sleeping potions, though?”
“Was that a question or an answer?” Snape asked, mildly surprised that Potter’s spawn had come close to an answer. “Let’s try our newest star. Miss Inverse, where would you look if I told you to find my a bezoar?”
“Easy,” Lina said lazily. “The guts of a beast. Cattle, goat, sheep, something like that. They fetch a decent price if you can prove they’re real. It’s usually more reliable to buy them from a butcher than to hunt up the goats themselves.”
“I did not ask you about petty economics,” Snape snapped. This was not going at all well. “Very well, Mr. Inverse maybe you can redeem yourself. What is the difference between monkshood and wolfsbane?”
Harry got the distinct impression that no answer would satisfy Snape. “I don’t know, sir. Wolfsbane doesn’t grow anywhere near my home, and I’ve never heard of monkshood.”
“Well, perhaps if you are not hopeless, you may learn,” Snape said nastily.