The magic shield outside the Floating City gradually changed shape. Although the speed was hardly increased, it nonetheless reduced fuel consumption of the Floating City when moving underwater.
Countless magic beasts were harassing the Floating City on its return journey. But then again, beasts that dared to harass a monster like the Floating City were not very intelligent so killing them was a breeze.
The Floating City needed to take a detour around the abyss if it were to take to the air, making it necessary to head south for thousands of kilometers before being free of the ice on the surface.
The ice sheets covering the Oceanic Ice Block were several kilometers thick. If the Floating City intended to simply barge through the ice and fly, it would have been difficult.