I totally agree. I just finished reading The Lost Symbol, and was impressed up until the last few chapters. Highly disappointing. I've read all his other work and loved all of it. I was waiting for weeks for my library to get it in, and I could've done jumping jacks I was so happy when I got it in my hands... Ah well. If he writes another one I guess I would read it, but it won't be as eagerly awaited.