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the ceiling; I went through and came out on the other side.

For a second I had the sky to myself; the ceiling was become a floor of soft, gleaming float through which suddenly shot the blue monoplane with the helmeted girl in the cockpit.

Then occurred the amazing, revealing thing. She was beside me but she paid no attention whatever to me. It was as if she did not see me, as if the thrust through the cloud had blinded her—or again completely changed her.

She flew past, making no strike at me; and, as I watched her, an idea like this ran in my head. She had been normal when she had been with us on the sea; it was after her dive through the clouds that she had altered and flown amuck. Had her return through the cloud restored her?

The change in her was as utter as that.

There she was flying off straight and evenly, as sanely as anyone. But now—now, in one of her short, ugly stabs, she banked and was about at me.

I dodged to the left; and at first she made