"Do you really want to do this?" Darya asked. "I can't see this ending well for us."
"I'm curious as to why this dungeon is weird," Leon answered. " I know it is dangerous, but where are dangers, one can also find opportunities. Although I wanted to use the monster's body to try to fabricate magic items, we can't afford to take any chances. So, we will use the monster's weakness."
"Fire, huh," Darya said. "I wonder if we will be able to defeat it using only that. If our theory is right and this is the creature that turned the sentient beings of another world in liches, these things certainly have a stupid amount of vitality."
Leon nodded, even himself was thinking that this time he might be trying to bite more than he can chew. However, that dungeon was too strange to ignore. The fact that liches looked like humans was weird, the fact that a massive tree was the boss of the dungeon was weird, and the mention of a god of death was weird.
In any case, Leon tried to use Appraisal on the roots, but he didn't obtain any information... even though the roots clearly belonged to the corpse of the undead Trent. Considering that they knew nothing about the dungeon and that many unexpected things may happen, Leon and Darya spent three days preparing themselves for the battle. Most of the time, they spent buying potions and putting their contents in several steel containers. This time they didn't have to connect hoses to their body. They could use Telekinesis to move the mana liquid as much as they wanted. Besides, they could move without worrying like that. Anyway, they spent ten million coins on mana potions… Leon had a hard time buying so many mana potions, but in the end, it was everything to keep himself and Darya alive. It was an investment… Leon repeated that several times like a mantra.
"I think it is a bad idea to put containers of mana liquid near the roots of a monster..." Darya said. "Won't the creature try to absorb the mana by using its roots?"
"That is a possibility, and that is why we will destroy the roots first," Leon answered. "It won't be easy, but that is why we brought so many mana potions. Still, I'm confident in our victory because I never heard of an undead monster than can heal itself using healing magic."
That was Leon's plan, but after trying for one hour to burn the roots with magma spears, he gave up.
"Now what?" Darya asked.
"… It looks like the roots are just a reservoir of mana." Leon concluded after trying to slice the roots with his spears. "That would explain why we can't destroy it… the reservoir can grow, but can't be destroyed. Our only choice is to attack the creature head-on."
"And hope that it can't use its roots and surprise us by behind," Darya added.
The boss room was large like a baseball stadium, as expected, all the walls and floor were covered by roots. On the other side of the room, Leon and Darya found a fifty meters tall gray tree. There were no leaves in its body or nearby... but Leon saw a huge face in the middle of its body. The creature's eyes were closed, but it was too creepy nonetheless. So, Leon shot several Magma Spears toward its hoping to kill it before the thing could wake up.
Leon's Magma Spears didn't make only the undead tremble, it made all that part of the dungeon tremble since the creature's roots were covering everything. Darya didn't know Magma Spear, so she used Fire Tornado to attack the monster.
"Ugh! Donan, you bastard... what do you think you are doing?" The undead Trent opened its eyes and said, annoyed.
Leon frowned because it was the first time he had seen a talking monster, but soon her lost interest even on that name because, for some reason, the Fire Tornado under Darya's control disappeared, and she was trembling.
"Hey, why did you stop?" Leon frowned. "Keep attacking!"
"That name… that name…" Darya said, her eyes were wide open.
"Why do you care about the name a monster said?" Leon asked. "Keep attacking!"
"Donan is… my grandfather's name." Darya said.
Now that was surprising, immediately Leon thought that was just a coincidence but soon discarded that idea. Something was off... why the undead Trent would say the name of the most influential person in that world all of a sudden? Although Leon was very interested in that, he didn't stop attacking the moment he used Appraisal on that thing.
Ancient Undead Trent
Health: 446000/450000
Mana: 1750000/1750000
Stamina: 20000/20000
Active Skills: Cursed Ray Lv 220, Quagmire Lv 120, Stagnation Lv 100, Mental Drain Lv 100
Passive Skills: Water Absorption Lv 180, Zen Lv 150, Mental Fortitude Lv 120
Leon had fired several Magma Spears, and Darya's Fire Tornado helped him a lot, but they barely caused any damage to the undead Trent.
"It doesn't matter, we can think about this later," Leon said. "Just attack!"
Darya shook her head and recovered her concentration. It didn't matter why and how her grandfather's name was mentioned there, what did matter was that thing was extremely powerful and much more troublesome than the liches. That became obvious when the atmosphere of that area of the dungeon changed, and Leon felt his body became heavy to the point where his bones started to crack.