This is timely because it involves a character on the autism spectrum and foster care. While there are many sad things about this book, it is generally upbeat, and the portrayal of a successful foster care family is something that is more and more needed in middle grade literature.
There are a number of books that have been published recently that involve children in various stages of the foster care system; Hunt's One for the Murphys(2012) and Sloan's Counting by 7's (2013) seem to have started this resurgence. More recent books include Dilloway's The Summer of a Thousand Pies, Hennessey's Echo Park Castaways, and Lewis' Scarlet Ibis. It's important for young readers to understand that the children in their school have a variety of experiences, and for all readers to see themselves in literature. I know that Ohio has an increasing number of children in the foster care system, so I'm always glad to see books that show experiences my population might have.