And the Floating Engraving began to flicker, the spaceship carving wave-like traces in the air, its speed continually increasing.
After twelve hours, the Green Grass Knight arrived at the location of the space tunnel.
Above thirty thousand meters in the sky is a massive sky fortress named "Sky Shield," like a colossal floating steel city.
Big, really big!
Conservatively estimated at 3,000 square kilometers!
The outermost layer of the fortress is a rotating defensive ring, densely packed with an array of turrets, resembling an impregnable metal Great Wall.
Inside the ring is a "singular light cluster" similar to a wormhole, which is the entrance to the space tunnel.
The edge of this entrance is not a smooth circle, but twisted and undulating, like a vortex stirred by an invisible hand. The opening glows with a dim blue and purple light, occasionally bursting with golden energy arcs, like lightning briefly flickering in the void before quickly vanishing.
