Aristotle and Dante Discover the Secrets of the Universe

I took forever to read this book. So the thing about this book is.. It's really dull. Well yes the expectations were really high, which did not help. The plot itself was really underwhelming, and when finally it gotten a wee bit interesting the book was already finished. Like literally the last 5 pages??
The writing was not doing me any favors either, as it consisted mostly of dialogue and didn't give the book any depth.