From the Flame Jellyfolk, Sein gleaned secrets of the underwater world.0

The Twilight Sea Snakefolk he acquired allowed him to investigate the unique sensory organ of the aquatic race.0

By dissecting the creature, he discovered a small tumor deep within its ear, which he termed the “core”.0

This organ, prevalent among aquatic species, was likely what enabled them to sense the life force and pulse of nearby creatures through minute vibrations in the water molecules.0

This phenomenon was not limited to the Twilight Sea Snakefolk. Upon dissecting the three Green Oyster Crabs, Sein found similar primitive organs at the sides of their brain.0

However, theirs were not as well-developed as the Snakefolk’s, which Sein concluded was likely due to their lower evolutionary status.0

“It’s not just the aquatic races of the Magus World. In other planes of the Astral Realm, it’s likely that creatures evolved to a certain level also possess unique abilities and means of detection. It seems like an Aura Restraint spell won’t suffice for total concealment,” Sein mused.0

In the midst of his experiments, Sein noticed the diligent and quiet engineer next to him.0

He could not help but ask, “How do those from the Neisse Civilization detect and track foes?”0

Yuri, who had been zoning out, was caught off guard by the question.0

She quickly recovered and replied,...0