Martha Elizabeth "Libba" Bray (March 11, 1964) is an American writer of young adult novels including the Gemma Doyle Trilogy, Going Bovine, and The Diviners.
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People always think they know other people, but they don't. Not really. I mean, maybe they know things about them, like they won't eat doughnuts or they like action movies or whatever. But they don't know what their friends do in their rooms alone at night or what happened to them when they were kids or if they feel sad for no reason at all.