Brom, Oriana, Royal and Vale have formed their Quad... ...but will their success lead to their deaths? Before graduating, every Quad must take the Test of Separation, a proving ground that no full Quad has survived except for the mysterious demigods known as The Four. As Brom's Quad flourishes, bringing them ever closer to the Test, a foreboding grows within him. There's something rotten at the heart of the school. Can...