"Big sister, I have figured this dungeon out. There is a machine below the dungeon boss, the huge creature in that water. This machine is what is causing the whirlpool and water tornado. The monster is a whale, a gigantic whale covered in rocky scales. It's practically a tank, not something that could attack well. The real trouble is the machine that it is hiding below its body."
"As long as we destroy that thing, the water will stop fluctuating and the dungeon will be listed as resolved. There is nothing that could harm us here, but the purpose is to somehow move that whale away from the machine so we could destroy it."
"Though.. I'm a little bit worried about what could potentially happen if the machine was destroyed, too. It might be very dangerous."
"Hold up, Alena. The whale's name, is it the Rock Whale?" Aria questioned.
This was the assumption that she created previously upon getting a glance at the slow moving creature.
