A divided realm. A brutal caste system. A reckoning on the rise. In the mountain kingdom of Kulloh-Sor, Jah'ri was born a Nail, the lowest of the low. Now he's fought his way into becoming a Hammer in the king's army. His final test will take him beyond the mountain into the jaws of something ancient and earn him the right to serve the king in The Forbidden Parallel. But Jah'ri has a secret. He isn't fighting for the king. He's fighting for revenge. As unrest spreads from the sea to the Court, others begin to feel the cracks. A shoreline girl fights to protect her home. A noble-born child uncovers a dangerous secret. A politician tries to stop a war she didn't choose. A prophecy whispers of Solin, He Who Climbs the Sun. In a kingdom built to break you, survival isn't enough. Every revolution begins with a secret. When the mountain cracks, the question isn't who will survive. It's who will rise. After The Forbidden Parallel, watch for the The Fallen Parallel and The Final Parallel, the next two books in the series.