The book expert Lucas Corso begins an investigation on the three remaining copies of The Nine Doors, a book believed to give access to the Devil's Kingdom.
Roman Polanski's The Ninth Gate was based on this novel.
I did not care for the movie when it came out, but I could barely remember it when I started the book, and I was told The Club Dumas was actually different and better.
I really enjoyed the treasure hunt aspect of the novel. It's filled with drawings and charts that draw you in and make you feel like you are investigating with Corso. It was overall an interesting easy-read with a few unexpected turns and some fairly well-written characters. And there is of course the eternal appeal of "books about books" for avid readers like me.
Having said that, I have to admit the ending felt slightly anti-climactic when the rest of the novel clearly called for a more memorable, if not shocking, conclusion.
I don't know if I'll read another of the author's novels, but I enjoyed it while it lasted.