"That's a good sign," he says softly after a moment, watching the rings glow. "You have some ability."

He eases off on the power flow, and his ring goes dim, but Roi's continues glowing faintly. Balthazar smiles, thoughtful but pleased. He looks around the room a moment, then points at the bed. "Let's try something. Look at the way the blankets lie on the bed. Even that way, there's air between them and the mattress. Try to imagine filling up that space with more and more air, until the blankets start to fluff up and lift away. Can you do that?"