Diary of a Wimpy Kid: Hard Luck (8) is the eighth book in Jeff Kinney's popular series, which tells the story of a new adventure in Greg Heffley's life. Greg tries to cope with losing friends and family problems when his best friend, Rowley, gets a new friend. Greg decides that he needs to go in search of luck and uses a magic notebook for this purpose. The book is filled with humor and interesting illustrations, making it particularly appealing to children.