Book excerpt: The first four books in the bestselling Diary of a Wimpy Kid series are now available together in a collectible boxed set. Included are "Diary of a Wimpy Kid," "Rodrick Rules," "The Last Straw, Dog Days," "The Ugly Truth," "Cabin Fever," " The Third Wheel," " and Hard Luck," ""as well as the "The Wimpy Kid Do-It-Yourself Book," all in a specially designed package.