“Yup. Energy equals mass times the speed of light squared,” she quoted. “Which means that magic and electricity and sunlight, which are energy, are the same stuff as things I can touch, which is mass or matter. And I can innerchange ’em ’cause they’re just different forms of the same thing. But I didn’t innerchange ’em.” My entire body had gone cold as she spoke. I was pretty sure my heart had stopped beating. “Okay,” I managed. “So what did you do to make the butterfly grow big?” “I didn’t make one grow big. I jus’ made a big one come to me. From one of the other places.” I breathed through
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