Blue Bloods

If you are into books about vampires, check out Blue Bloods by Melissa De La Cruz. The elite families in New York City all have one thing in common, they are vampires. The children of these families all attend Duchesne Academy. These families have memories from The Mayflower, since they never die. At least, they are not supposed to die. Something has been hunting and killing other vampires.
At 16 Schuyler Van Alen starts noticing these marks on her arms. Her grandmother seems pleased about them. Little does Schuler know, that these are the markings of a vampire until her first meeting of The Committee where everything is explained. When Schuyler's friend Dylan is accused of killing another vampire, she and two more friends try to clear his name.