"To protect the plants..." Easy enough to understand, though she has no magic of her own. Dany nods vaguely, glancing back at the barrier before turning again to Carlisle. Clearly this man is cold - and rightfully so - but she doesn't plan to keep him for long.

"Is it possible to cast this sort of thing on a much smaller scale?"

He doesn't know her and owes her nothing, but she can't help but find herself fretting just a bit about the tiny garden she's been nurturing to this point.