Vale faces The Four alone while her Quad races to save her…. Clinging desperately to life, Vale uses every crackling Soulblock of her newfound magic to trap The Four in a labyrinth deep within the earth. But they are digging up…up…up…. Soon, they will have her. Brom, Oriana, and Royal gallop across the breadth of the kingdom to reach Vale. But the trail is cold, Brom has lost his magic, and an ancient entity stalks them. In this stunning conclusion, Quad Brilliant must pierce illusions, fight for their lives…. …and reunite once and for all.