We have this unique-format book in Juvenile Fiction, but it's also got elements of a picture book (story that is enhanced and sometimes advanced by the illustrations) and a first chapter book (the story is divided into sections of simple text). Read the whole thing, spying minute differences in the circular black-and-white oil paintings, to find out how the stories of the dog, the girl, and the juggler will intertwine. More complex than it looks initially. 
 (view spoiler)[Probably one of my favorite last lines ever: "And in her dreams Lucy saw her new life...just exactly as it was." (hide spoiler)]