Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good writing, bad ending

I've read several of Michael Dibdin's books and was looking forward to reading this one. After I finished it, I just couldn't believe the ending! I kept expecting one more plot twist to explain away what I was reading. He did a nice job of reviving Holmes and Watson in Victorian London but I just couldn't buy his "unmasking" of Jack the Ripper. No way