It started happening right after my fortieth birthday, in June: I woke up in the middle of the night with a strange feeling in my feet—not pain, exactly, but pressure so intense it absorbed my whole attention. I cried out in surprise, and Serena rushed into my room, and then we pulled back the covers to see that my feet had been replaced by perfect horse hooves, black and stonelike. As predicted by the pamphlets, I felt disgust, then wonder: The transformation of your own body will be a spectacle arousing both revulsion and awe. I got up and tried to walk around. Serena and I both giggled,
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