Whoosh!
Leon appeared in a dark cavern with a flash of light. Immediately, he sent out several fireballs to the distance while summoning his most powerful summons. He also pulled out a few dozen millipedes, as he wanted to see if he could push them to A rank. It seemed their potential had finally been tapped out, but he needed to know what would happen when when they finally reached the maximum level of their current evolution.
"Hmm, quite strange." Leon hummed as he looked around, examining the illuminated cavern. The name of the dungeon that they had been transported to was the Labyrinth of Madness. It was an immense underground labyrinth that was many kilometers long, and several more deep. It would take days to completely explore the entire place, and that was without the threat of powerful monsters and getting lost in the winding caverns and tunnels.