Wolff, Tracy. Crave (Series) #2

Sequel to : Crave

Returning to Katmere Academy, the Circle is caught in a power play and the Vampire Court fights for leverage while Hudson and Jaxon vie to make themselves the most important person to Grace -- one with secrets that appeal to her mind and the other with the love that has captured her heart. Meanwhile they all face an unspeakable evil and possibly the ultimate sacrifice

Returning to Katmere Academy, Grace is haunted by fragments of days she has no recollection of living. She is struggling to understand who, or what, she really is. But just as she starts to feel safe again, Hudson is back with a vengeance. He insists there are secrets Grace doesn't know about, threatening to drive a wedge between her Jaxon. The Circle is caught in a power play and the Vampire Court is trying to drag Grace into their world. The only thing Hudson and Jaxon agree on is that leaving Katmere would mean her certain death. -- adapted from jacket