A dark energy descends, and Haern searches for understanding. The metal he’s known his entire life, metal he’s come to know better than almost anyone alive, has changed. Now he must find out why. The key to this dark power is something unexpected, and requires him to seek a dangerous alliance. While exploring the space between Sliding, Lucy finds a danger she had never expected. Now she must find her way past before it’s too late. She searches for help from an expected source, but the key to survival must come from her. Understanding the Shadow Queen brings Daniel, Rayen, and Carth back where they first encountered her. What they discover changes everything Daniel knows of the stones. For Ryn to know her purpose, she must return to where she began to question. As she enters the Temple of the Mind, she uncovers a danger greater than anything she has ever imagined. For her to survive it, she must accept her past. The real game begins. All are nothing more than pieces on a game board, but who will lead the attack?