The palace of laughter, by Jon Berkeley
Miles Wednesday, a homeless boy who never knew his parents, goes on an amazing adventure that starts in Larde, his home town. When the Circus Oscuro arrives in Larde in the dead of night, Miles suspects something. When he meets a small performer called Little, his suspicions are confirmed. I would recommend this book (and the series, The Wednesday Tales) to adventure lovers 8 and up, for this book gets a little crazy sometimes!
Reviewed by Riley from Tawa, 10 years old