Jake and Perry reached the 18th floor. They examined the dungeon core which was thrice as large as before. It had a much denser mana for which any monster here would fight to death.
Jake had bought a new skill called [Dark Vision] after reaching here as it was really dark. However, Perry didn't have such an ability, so he had to light a torch.
As the flame roared to life, consuming the mana of the dungeon, Jake put the torch nearby and turned to Perry.
Suddenly, three high-grade mana crystals appeared in his hands.
"Take these and put them around the dungeon core," Jake ordered.
After Perry did as he said, Jake bit his finger and started walking around. He made a circle of blood through those mana stones.
Moving his finger vertically, Jake made various geometrical shapes and another circle. This one was smaller. He did this until five distinct, bloody lines converged towards the dungeon core.
