The bottom levels of the dungeon are infested by the most dangerous Creatures in the game. Do not come here without a lot of Hit Points and very high Stats (particularly Stamina). Most Creatures here just hit hard, but two have special abilities. The Invisible seeker is, as the name implies, invisible, and the game gives you no indication of where they are until you attack them. Being attacked by an Invisible seeker at an intersection can be deadly. The only special attack on the floor is the Mind whipper's mental attack, which drains Intelligence. This isn't that big a deal, and it's easy to recover from, but it's still quite annoying. There's no real need to go to level 10 if you're looking to kill a Balron for your final gem Quest, but if you do, be aware that there is no ladder down, and the Ladder Down Spell will not function.