Interesting characters and dialogue. It sounds like a Lemony Snicket book when it begins. Highly talented orphans, a brother and sister, who have been trust upon an obscure relative who dosen't want them. The plot was just plan silly.
I've not heard the audio book but have read the book and it's absolutely amazing. I read it to my godson who completely loved it and have since passed the message on to get similar feed back from friends with children. It's such an original story, written with a style that is completely individual to this writer (I've subsequently read his next two books) ... despite it's whistlestop adventure, it has a sort of grace about the way it's written. Appeals to boys or girls - highly highly recommend.