LADY. You've noticed that?

STRANGER. For some time I've noticed a great deal; but not as I used to. Once I merely saw objects and events, forms and colours, whilst now I perceive ideas and meanings. Life, that once had no meaning, has begun to have one. Now I discern intention where I used to see nothing but chance. (Pause.) When I met you yesterday it struck me you'd been sent across my path, either to save me, or destroy me.

LADY. Why should I destroy you?

STRANGER. Because it may be your destiny.

LADY. No such idea ever crossed my mind; it was largely sympathy I felt for you.... Never, in all my life, have I met anyone like you. I have only to look at you for the tears to start to my eyes. Tell me, what have you on your conscience? Have you done something wrong, that's never been discovered or punished?

STRANGER. You may well ask! No, I've no more sins on my conscience than other free men. Except this: I determined that life should never make a fool of me.

LADY. You must let yourself be fooled, more or less, to live at all.

STRANGER. That would seem a kind of duty; but one I wanted to get out of. (Pause.) I've another secret. It's whispered in the family that I'm a changeling.

LADY. What's that?

STRANGER. A child substituted by the elves for the baby that was born.