Diary of a Wimpy Kid #12 is about Greg and his family going on vacation at Christmas time. They are almost late for the airport but their flight gets delayed; for the whole day. When they get on the plane Greg gets scared, and to make things worse, two more people come into his seat and there is also a baby that is sitting in the same row that he is. Once they get to the resort, Greg is actually glad they went, but all the fun activities are sold out for the week. So, they go on a boat and go snorkeling. Greg thinks that he swallowed a seahorse but the doctor just says he is okay. They get kicked out of the resort, for stealing peoples clothes, but they sneak back in to get a family picture. He ends up swimming with dolphins that he thinks are sharks. That happens when their trying to get a family picture. Then, a wall busts down into the adult side of the place; and there is chaos. Overall it is a really good book and I think you should read it. It is really funny and chaotic.