Aslan

He led them rapidly through the wood, and before they had gone many paces, the wall of Experiment House appeared before them. Then Aslan roared so that the sun shook in the sky and thirty feet of the wall fell down before them.]

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And when she saw the lion and the broken wall and Caspian and Jill and Eustace (whom she quite failed to recognise) she had hysterics and went back to the house and began ringing up the police with stories about a lion escaped from a circus, and escaped convicts who broke down walls and carried drawn swords. In the midst of all this fuss Jill and Eustace slipped quietly indoors and changed out of their bright clothes into ordinary things, and Caspian went back into his own world. And the wall, at Aslan's word, was made whole again.

> Chapter 16, the Healing of Harms, The Silver Chair