“No, you most certainly will not. I will prove it. There are plenty of towns we can detour into as we pass. I’ll give you a tour of the destruction your products have plagued the magical world with.”
That doesn’t prove anything though. Hasn’t he heard of “chain of evidence“? The product has been through many people after leaving her to make it to the customers. It’s weird that no one has thought of that, especially with how adamant she’s being about the fact that it doesn’t kill and is safe.
