"In the end I sort of though we created a companion who was so alive and dynamic and so wedded to the doctor that you’d need a whole universe to contain her in. The only way to get rid of her is to send her into a parallel world from which she can never return; otherwise she would stay with the doctor forever."

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"It's OK," Puck says. She has a quick way of hiding her disappointment. If you're not looking for it, she's put it away somewhere before you know it was there. "You're busy." "No," I tell her. "No, I'll think about it. I'm not sure if I can get away." I don't know wheat I'm thinking. I cannot find the time to get away. I'm not a good dinner companion. But it's hard to think of that. Instead I'm wishing that I'd spoken sooner, before I'd seen her disappointment.

— Maggie Stiefvater