Aldrich stopped the ghosts from leaving but most of them already started vanishing, however he still had an important question to ask them.
"Why didn't the lord and the authorities investigate the disappearance of this many people?"
Aldrich had this question the moment he saw the number of the ghosts. No matter how busy the lord was he wouldn't be able to ignore this. When that many people go missing it was bound to creat some waves in place.
"I… am not sure… but most of the new ghosts were not from Ebrict… they may have taken people from other places."
The ghost was able to offer an explanation before vanishing altogether. At last this quest was finally over.
The Aberrant acolytes were sent here for a certain objective, they were intelligent enough to cover their tracks and were able to lay low under the nose of the lord.