No Exit

Drakos already pushed so far forward that he didn't hear her shout but Bella was determined, chasing after him. 

She was shocked seeing a hollow space inside the mountain, filled with tens of thousands of houses and bridges filling the airspace. It was an enormous city filled with giant Dwarfs as well as production lines and tracks that extended in all directions. Chunks of ore were transported to different parts of the city and everything worked so smoothly like an oiled machine. 

Naturally, when a large Dragon broke into the city, a loud alarm alerted the Dwarfs. Drakos didn't mind the commotion, flying in between houses as if he already knew this place very well.