In order to counter this strange situation, the hired spiritualist, who was behind the group in order to protect the workers, went to the front in order to read the mind of the crowding monsters. The result—-
“The great will of the labyrinth is wary, and has a great amount of hostility towards us.”
According to the information the spiritualist got from reading the monsters’ minds, it seems like the collective consciousness sees the creation of the base as a threat and sees the base creation team as an important enemy, so it sent the monsters under its control to attack them.