The book ends with a scene in a shed in an amusement park, where Patch supposedly lives ( the third book gives more insight into this), then ends in a cliffhanger, causing you to want more.
There are four books in the series, Hush Hush, Crescendo, Silence, and an unnamed book coming out this fall.
This is one of my most favorite books ever. There is everything a paranormal romance should be, suspense, steaminess, action, and a surprising twist. These are the true fallen angels, just stay on their good side and you wont end up hurt ( stay human don't become a Nepil).