When Claudia and her brother, Jamie decide to run away, they don't just run anywhere: they make their home in the Metropolitan Museum of Modern Art in New York. While there, they sleep in opulent beds, bathe in the fountain, and stumble on an art mystery that captures their imaginations. I adored this book as a kid and I think it's one I would still love as an adult. I loved the kids' resourcefulness, the fantasy of camping out in an amazing place like a museum, and I loved the idea that kids could be enthralled by--and potentially solve--a mystery that rocks the art world.