I just finished City of Ashes by Cassandra Clare. This is book two in the Mortal Instruments series. I could not put it down! I love this series! I borrowed the first two books from a friend and REALLY need to find the next one but my library is not very up to date in its books. I would absolutely recommend this series to anyone who likes paranormal romance. Even if you don't usually do YA this is a great series. Here is the summary from the back cover:
Clary Fray just wishes that her life would go back to normal. But what's normal when you're a demon-slaying Shadowhunter, your mother is in a magically induced coma, and you can suddenly see Downworlders like werewolves, vampires, and faeries? Clary would love to spend more time with her best friend, Simon. But the Shadowhunters won't let her go - especially her handsome, infuriating newfound brother, Jace. And Clary's only chance to help her mother is to track down rouge Shadowhunter Valentine, who is probably insane, certainly evil - and also her father. When the second of the Mortal Instruments is stolen, the terrifying Inquisitor suspects Jace. Could Jace really be willing to betray everything he believes in to help their father?