It was about a young girl who lived in Manhattan. Her family was wealthy and she was kidnapped and held for ransom. Her family was very quirky and eccentric and the book was very funny - kind of madcap. Anyone have any ideas? I think the title started with "The kidnapping of......" or "The ransom of......" (And no, it's not "The Kidnapping of Christina Lattimore" - this had a very different tone.)