City of Glass (The Mortal Instruments, #3)

I was in such suspense through this book, and when Clary found out for sure that Jace wasn't really her brother, I called out "Finally!" aloud and my husband looked at me funny. This is definitely my favorite "urban fantasy" so far though I must say I haven't read many of them and I'm not sure how fond I am of the genre in general. I was completely hooked on this whole series and read it all in the span of a few days, compelled to keep going.