Isle of the Lost by Melissa De La Cruz

All the evil ones of Disney are regulated to a single island, where no magic is possible.  That seems fair, except these evil doers have families that are also punished because they are the children of evil.  If you want some bad chaps, put all the bad chaps in one place, nothing good will come of it, or will it?
Basic Disney fair with a little twist and a big moral tale.  Will really appeal to the younger middle school reader.