The concept of this book is intriguing -- the author seems to have plotted the story using vintage photos, which are scattered throughout the book. It's clever, and the book is a quick read, but certainly not for anyone over, say, twelve or thirteen. For an adult it's entirely too predictable and the characters aren't nearly developed enough. In fact, I don't think it's even terribly good children's/YA literature. For a wonderful book in the same vein, I'd stick to Madeleine L'Engle's A WRINKLE IN TIME or THE WIND AT THE DOOR.