"The dream side?" She crouches down to be on a more even level with this tiny terrifying weird mascot character, frowning as she seems to be thinking. "You mean their side?"

She means the witches' dimensions, but since she can't say that name, she ends up just sounding vague..

"There's no way, I'd know if this was some other dimension. Also, I'd be pretty concerned for your lifespan if you lived with one of those monsters. They'd use you as a snack."