The team members raised their guns, aiming around and protecting Kent in the middle of the team.
Kent took out a foam gun from the alchemy stone and sprayed grey expanding foam towards the hole.
The foam moved around the edges of the hole, filling it in layer by layer, and soon blocked off the access to the fourth underground level.
"Thump thump thump..." Kent crouched down, tapping the hardened foam with his knuckles, then said:
"The hardness of this layer of foam is the same as that of the floor. We can stand on it without any problem, but it will only last for half a month. When we get back to the ground level, I'll report to the company and let them send someone to repair the floor.
"Now listen up everyone. Ray Lee and I will keep guard, you all search the ground level and gather all the alchemy parts of the mechanical spider. Leave the parts that fell to the fourth underground level, so we don't run into any illegal alchemists while collecting them."
