Dory and the real true friend

In this book, Dory is headed to school. Her older siblings insist that she leave her best friend, Mary, who happens to be a monster that only Dory can see, at home. Dory agrees, since Mary had caused so much trouble at school the year before. Dory is going to try instead to be a regular girl and not get into trouble, but that’s not very easy when a new adventure comes her way. She also meets a girl in her class who appears to be a princess and talks about the castle she lives in and her pet dragon. Her siblings don’t believe that Rosabelle isn’t imaginary though. As Dory figures out that this may be a new real friend, thanks to their shared huge imaginations, she may also need help rescuing Mr. Nuggy, her fairy godmother, from the clutches of Mrs. Gobble Gracker. [wakingbraincells.com]