Divided Souls (Darke Academy #3)

The Darke Academy is now in Istanbul, and wherever the Academy goes, death is never far behind  Death has followed the Darke Academy to the ancient city of Istanbul, where an unseen hunter is on the loose. Scholarship girl Cassie Bell is fascinated by the city's beauty, but there's no time for her to relax. Torn between an old flame and a new romance, she must also choose between the select world of the Few and her loyalty towards her best friends—and all the time a killer is stalking the Few. As Cassie is about to discover, no one is above suspicion. Sometimes, the people you love can be the most dangerous enemies of all.