Dan Gutman 
Christmas Genie [EPUB ebook] 

Its the last day of school before Christmas vacation and Alex, Chase, and the rest of Mrs. Walters fifth-grade class couldnt wish more for the final bell to ring. But the day takes a crazy turn when a mysterious meteorite crashes through the classroom windowand a genie pops out! Bob, as hes called, is willing to grant only one wish for the class to share, and if they cant agree on something before the bell rings in an hour, theyll get nothing at all. What follows is a debate that is at turns thought-provoking and hilariousand at all times irresistible.