Under Attack

"Any mishaps?" Everette asked one of the knights stationed at the main gate.

Earlier in the morning, while the street and central plaza are busy, a ghastly wailing was heard inside the walls.

When they trace the source, they found an artifact lying in the ground about ten kilometers from the main gate.

"There was none to report, My Lord."

Everette slightly nodded and turn around to face the newly arrived Hero at the main gate.

  "Is there new information from your end?"

"Same with the rest, we found nothing. No lingering mana, smell, or trace of a person that dropped the artifact. It seemed like we have a ghost."

"Ghost?"

Hearing the word ghost, the knights listening to them slightly jolted. They can fight different types of monsters and they have no qualms about it, but it's different in the case of a ghost.