**Chapter 13: Beyond the Threshold**

As Jin-woo stepped through the doorway, he felt a sense of weightlessness, as if he was floating on a sea of air. The warm light that had spilled out from beyond the door enveloped him, and he closed his eyes, letting its radiance wash over him. When he opened them again, he found himself in a vast, crystal-filled chamber, the walls and ceiling glittering like a thousand shards of glass. The woman stood beside him, her eyes shining with a knowing light. "Welcome to the Heart of the Labyrinth," she said, her voice barely above a whisper. Jin-woo's gaze wandered, taking in the breathtaking beauty of the chamber. The air was filled with a sweet, musical hum, like the gentle buzzing of a thousand harp strings. As they walked deeper into the chamber, Jin-woo noticed that the crystals seemed to be arranged in a specific pattern, etched into the walls and floor like a complex code. The woman noticed his fascination, and smiled. "These are the Memory Crystals," she explained. "They hold the secrets of the labyrinth, and the stories of those who have come before you." Jin-woo reached out a hand, hesitantly, and touched one of the crystals. As he did, he felt a sudden jolt of recognition, as if he had stumbled upon a long-forgotten memory. He saw a figure, walking through the labyrinth, a figure that looked uncannily like himself. But it was not just him – there were others, too, walking alongside him, their faces indistinct, but their presence palpable. The woman nodded, as if she saw the understanding dawning on his face. "You are not the first to walk this path, Jin-woo," she said. "Many have come before you, seeking the secrets of the labyrinth. And many have left behind their stories, etched into the crystals." As Jin-woo continued to explore the chamber, he began to notice that the crystals were not just random – they seemed to be arranged in a narrative, a story that unfolded as he walked. He saw scenes of great battles, and moments of tender intimacy. He saw civilizations rise and fall, and the labyrinth shift and change, like a living, breathing entity. The woman walked beside him, pointing out key moments in the narrative, and offering cryptic explanations. Jin-woo listened, entranced, as the story of the labyrinth unfolded before him. He began to realize that he was not just a seeker of secrets – he was a part of a much larger narrative, one that spanned centuries, and worlds. As they reached the far side of the chamber, Jin-woo saw a great crystal throne, its surface etched with symbols that seemed to pulse with energy. The woman gestured towards it, her eyes shining with a deep intensity. "The Seat of the Architect," she said, her voice barely above a whisper. "Here, you will find the greatest secret of all – the secret of the labyrinth itself." Jin-woo felt a sense of trepidation, mixed with excitement. He had come so far, and now, he was on the threshold of the greatest revelation of all. He took a deep breath, and approached the throne, his heart pounding in his chest. What secrets lay hidden on the Seat of the Architect? And was he ready to face the truth?