[ And that's what he does, scraping the rest of the ghost gunk into the vial. ]

If you don't mind, I would like to see what you do with this when we get back to the carnival. I'm afraid I know almost nothing about potions in the first place!

[ and after all, he'll only be in this carnival for a year or so. Best to get as much knowledge about as many different subjects as he can while he still has the chance. ]