It showed that one or some creatures had become a third party in the battle and smashed everything on the site with a powerful attack or combination of attacks.
The report made the higher up of the Iron Gate fortress startled. He, with some of his advisers, then concluded that their battle with the parasite had made a powerful force in the misty forest angry.
It was no wonder, because, from the data that they got after that, tens of thousands of monsters lost their mind and ran amok in the misty forest that night because of the parasite's skill.
On that day onward, he decided to order all undead to withdraw from the misty forest. He didn't want to annoy the powerful force in the forest while the undead's main force was waging war with the parasites in the East.