Diary of A Wimpy Kid - The Third Wheel revolves around Gregory Heffley, a young boy who is popularly known as Greg. The protagonist is looking for a date to take to a valentine's day dance at his middle school. His best friend, Rowley Jefferson, joins the dance committee by becoming the social chairperson. Greg decides to ask Rowley for help, who does not have a date too. The protagonist's best friend sets him up with Abigail Brown. Unfortunately, this means that Rowley is the odd man out. Meanwhile, Uncle Gary has come to live with the Jefferson family, though no one really wants him there. When dance night finally arrives, Greg and Abigail spend time together on the dance floor. All is going well, till the protagonist suddenly realizes that his date is coming down with chickenpox. He sees spots on her face and completely freaks out. This is certainly not what Greg had planned for the night. Diary of A Wimpy Kid - The Third Wheel is a hilarious and entertaining novel. Like all books in the series, this one too is designed like a kid's diary, with handwritten notes and doodles. Published by Penguin UK in 2013, this book is available in paperback. Key Features: Diary of A Wimpy Kid - The Third Wheel, the seventh book in the Diary of A Wimpy Kid series, is an international best selling children's novel. The series has sold nearly 60 million copies in print and has been adapted into feature films too.