I really wish I had read this as a kid -- I don't know how I never managed to pick it up before. It was cute and enjoyable, and I respect that L'Engle actually tried to explain how time travel might work rather than just hand-waving her way through the story. I just couldn't love
it as an adult, though -- the main character, while spunky and the kind of protagonist I would have identified with at her age, began to wear on me with her constant self-deprecation, and the cheesy deus-ex-machina at the end was annoying. Oh well, it's not like I invested that much time, and I'm glad I finally got around to reading it.