Construction of the main body of the Sky Fortress, Dawn of the Mortal World, had reached its final stage. According to the original plan, the assembly site hidden among the mountains and dense forest had finally come to the moment when it would see the light of day.
Hearing Gawain's order, Rebecca activated a device beside the Magic Net Terminal. As a sudden humming sound rang through the entire "cavern," her voice echoed over the assembly site: "Attention, all units. The 'sky curtain' is about to open. Personnel in the work area, suspend construction and wait for environmental adjustment—the dome projection will shut down in ten seconds."
Rebecca's cheerful, energetic voice echoed over the entire site. As her words fell, a succession of clacking sounds came from hidden corners as magic relay devices activated, shut down, and switched over. The sounds of mechanical devices moving and operating also rose in the distance. Gawain looked up and saw that many of the steel support beams fixed near the gray dome overhead were slowly shifting aside, while numerous lighting devices changed position as well. With these changes in the Mechanical Structure, the "rock dome" covering the entire assembly site suddenly flickered after a brief delay.
Streams of white light appeared across the ceiling, brightening from darkness. The once seamless cave roof was divided by those currents into hundreds, thousands of evenly sized squares. Then the squares gradually turned transparent amid flickering light. In the next instant, pieces of "black Rock strata" vanished into thin air, the Holographic Projection forming the dome dispersed, and a vast, brilliant sky appeared above the assembly site!
Beyond the dome, the sunlight was perfect, and thin clouds adorned the clear winter sky. Once the sky-curtain projection vanished, the Protective Barrier above the assembly site temporarily shut down