Arthur's Mystery Envelope It looks like trouble when the principal asks Arthur to take home a large envelope marked CONFIDENTIAL. His friends try to guess what's inside. It might just be information on...summer school Will Arthur face the consequences or pretend to lose the envelope? In chapter-book...

Arthur's Mystery Envelope It looks like trouble when the principal asks Arthur to take home a large envelope marked CONFIDENTIAL. His friends try to guess what's inside. It might just be information on...summer school Will Arthur face the consequences or pretend to lose the envelope? In chapter-book format, for children who are ready to read on their own, this mysterious adventure will surely be a hit among Arthur fans.