Sam can't help but laugh at that. "I've learned enough over the years to know it's the 'tiny, harmless' ones that are the most dangerous." Dynamite comes in a small package, after all. It still shouldn't be messed with.

His expression turns to a thoughtful frown. "I'm not...entirely unused to the sorts of things that they've described the Stuff as doing, but not in this sort of...mass? Things that take on that sort of mental energy are few and far between in my world. Like, thoughts made real are a thing sometimes, but they tend to be limited to a very small area." She'll either get it or she'll think he's nuts. From what she was just saying, though, he'll take a chance on the former. "I'll do my best, but I'm likely to start spouting my own sort of magic jargon if you get going."

They're not going to get anywhere by being entirely secretive. Better lay a few cards out on the table to start with.