Deadly Alliances by Tricia Barr

Welcome to Heritage Prep, the school for the most elite and worthy of eternity.

Arya didn’t know what to expect when she gave herself over to Hadrian, but a loving, supportive father certainly wasn’t it. As her captivity deepens, the line between good and evil blurs into obscurity, and she struggles to discern between truth and lies.
Tobias is more determined than ever to rescue Arya from Hadrian’s clutches. But without the imprint, he has no tether to guide his instincts, and for the first time in his life, he’s acting on emotion, which isn’t good for anyone.
Shea and Caesar make a plan to rescue Julian, but it means walking right into the den of the enemy, and she quickly finds she bit off far more than she can chew. With Julian at Marguerite’s non-existent mercy and Arya questioning her beliefs, will Shea be able to get everyone out of the vampire school before one or more of them cracks?

If you like the steamy shifter action of Zodiac Academy and the dark thrill of A Court of Thorns and Roses, you’ll devour this fifth book in the Dark Shifter Academy by the bestselling author Tricia Barr.