I was hoping for a dead body, but the plot is an "unravel the code" quest: The goal is overblown, and the ultimate answer yawn-inducing. The climax relies on similes. There is no character arc to speak of.
Most of the fun of the book is a series of intriguing environments. Some of these, like the description of the Google campus, I found interesting; some I just found implausible (people in underground caverns wearing black robes under the streets of New York). Maybe someone in my book club will be able to explain the appeal of this book to me. Then again, maybe we're all too old :)