Board Thread:4. General Discussion/@comment-124.83.16.225-20160127164816/@comment-124.83.16.225-20160221134037

The monsters in Velvet's dungeons were maintained by Returner and the skeleton summoners, though. A real dungeon, both the divine age dungeons and the derivation dungeons, automatically have damage in the interior restored and monsters spawned.

The reason the spirits were attracted was because of Velvet's great skill at manipulating spirits. Also, the hotsprings Parabellum dug up restarted the activity of spirits and attracted even more spirits to the forest, hence its growth, the richness of its soil, the rising strength of the monsters, and the new spirit stones popping up.