This book is about two sisters, a mysterious neighbor, and maybe pirates. The two sisters get a chance to go to London for London season. One of the sisters is a writer,and they go to stay with a male cousin who is suppose to help them around London and understand the society. There they meet their neighbor who hasn't been to his home in many years. He has a brother who has a gambling problem. In the book he is known as Ravenscar or something like that.The young lady decides she is going to go back to his castle with him. They both get trapped in one of the towers.