Every Heart a Doorway by Seanan McGuire

Book – Nancy’s parents don’t know what to do with her. She’s changed – she won’t wear colors any more, only shades of black and white; she doesn’t eat much, and sometimes, when no one’s looking, she goes very, very still. So they send her to Eleanor West’s Home for Wayward Children, where they hope she will become more like her old self. But Nancy’s parents don’t know what Eleanor West’s real business is. She counsels children who, like her, like Alice and Dorothy and the Pevensies, once stepped through a doorway into another world. And then they came home, to a world much less interesting than the one they’d visited (a different world for almost everyone), and more than anything they long to go back.

This briskly-paced little novella is an idea wrapped in a murder mystery: what would that kind of adventure, the portal-fantasy adventures that so many of us grew up on and dreamed about, really do to a person? What would they be like when they came back? The mystery is just something to keep things moving along, to give us an excuse to hear about all these kids (many of them teenagers, but some younger) and the worlds they visited. Anyone who’s ever dreamed about falling into a fantasy world will relish this story (and its sequel, due out in June).