Newbery Honor medalist Ann M. Martin's funny, insightful take on pets and family—now with a spectacular new cover. There are ten siblings in the Rosso family. Ten individuals with ten different ways of looking at things. But they all have one thing in Each of them wants a pet. The only problem is that their mom does "No pets," she has always said. "Ten kids is enough." But now that the Rosso family is moving from the big city to the country, there are big changes ahead, including a new farmhouse and lots of nature. But the Rosso kids will still need to figure out a plan to change mom's mind...

How do they do it? How do eleven kids, two parents, and a cat named Zsa-Zsa manage to hang out together on a small island for an entire summer? Who knows? But that's exactly what the Rossos decide to do, and boy, are they going to have a blast! And no vacation is complete without a haunted house, a gorgeous movie star, a seashell salesman, a ghost from the sea, and a disappearing baby brother. No Rosso vacation, that is!