Here's the summary from the book's website:
A boy named Ben longs for the father he has never known. A girl named Rose dreams of a mysterious actress whose life she chronicles in a scrapbook. When Ben discovers a puzzling clue in his mother's room, and Rose reads an enticing headline in the newspaper, both children set out alone on desperate quests to find what they are missing.One thing I really loved about this book was that the kids I read it to really loved it, and I loved it too - and I think we all enjoyed different aspects of it. It is a beautifully crafted story with amazing drawings. I wouldn't be surprised if this one was made into a movie too!
Ben's story, set in 1977, is told entirely with words, while Rose's story, set fifty years earlier, is told entirely with pictures. The two stories weave back and forth before ultimately coming together. Rich, complex, affecting, and beautiful–with over 460 pages of original artwork–Wonderstruck is a stunning achievement from a uniquely gifted artist and visionary.