City of Fallen Angels by Cassandra Clare
The Mortal Instruments Book 4
While this may not the strongest title in Clare’s popular Mortal Instruments series, devoted fans will still be engaged in following the continuing adventures and emotional ups and downs of Clary Fray and her friends. This story actually belongs to her best friend Simon Lewis, the recently turned vampire, more than any other character. Called the Daylighter vampire for his ability to go out into the sunshine and function during the day like the Shadowhunters and some of the non-vampire Downworlders, he quickly becomes the target of an ancient vampire and as well as others who try to get him to use his unique power to their advantage.
I would recommend this book to all Cassandra Clare fans and followers of the Mortal Instruments series.