Summer vacation with the whole family: Bestselling author Jeff Kinney delivers page after page of reading fun in the 19th installment of the comic novel series. It's summer break. But instead of hanging out with his best friend Rupert, Greg is facing a family vacation on the island of Knitterfels this year. The entire family packed into a tiny beach house and enduring sweltering heat. If that isn't the perfect recipe for a massive disaster. Beneath the surface, tensions are already brewing: Along with Grandma's closely guarded meatball recipe, there are more family secrets that Greg has no idea about. Will he manage to uncover them by the end of the vacation? Or will he just boil over the mood in the beach house? A guaranteed assault on the funny bone: a great reading experience with Greg and numerous cool cartoons by Jeff Kinney. Over 290 million books sold worldwide.