The story line is good but the author writes with no emotion. Everything including conversations are stated with fact. If you can ignore the writing style it is a good book.
In all honesty, this wasn't one of my favorite CSI titles, but it wasn't because of the storyline.
There are three separate crimes to be solved in DELUGE, all in the middle of an astonishing amount of rain falling in New York City. One involves the murder of a popular male teacher at an exclusive prep school, one is the findings of several bodies who can all be traced back to one man, and the other is a suspected case of arson that ended up with several dead victims at a small pub.
Although the crimes and the pursuit of the criminals were as entertaining as always, the emotions (or, actually, the lack thereof) of all of the main characters made me dislike the story. CSI: NY is my least favorite of all three CSI shows, and it's for the same reason that I didn't care for DELUGE -- the characters don't connect with each other like the ones on CSI and CSI: MIAMI do.
Overall, though, this is a fast read for CSI fans.