C1344 The Coming of a Bitter War

The world inside this metal ball was shockingly large. Although there was no sun at the sides, the sky and the ground also had many astonishing light sources.

The space here wasn't flat, but rather a zigzag spherical world. There were many mountains and rivers, but these were all vertical.

At the same time, there were even more metal buildings, pipes, stairs, etc. They intersected up and down