Yeah. To be a little more specific, I found some plants that were poisonous but shouldn't have been, and when I tested them to see why, it looked like they'd taken in some components that are used together in love potions. If it were just one ingredient I wouldn't think twice about it, but when there are several all together like that...

[Unfortunately, he can't actually prove a love potion was made, let alone who was doing it. Turns out it's difficult to investigate when wild boars are trying to kill you.]

If I had to guess, someone dumped their failures or extra ingredients out somewhere they didn't think anyone would find it. And the most likely suspect is dead, so we can't bother interrogating her. Is the fiance still alive, do you know?

[Robin is absolutely not above suggesting to abduct and interrogate someone if it means they get answers.]