The Chenoo narrowed its eyes as it scanned its surroundings.
Earlier, a Magma Bal-Boa appeared to challenge it, but now, it was nowhere to be seen.
Since its opponent could move under the ground, it was hard for the Chenoo to pinpoint its exact location unless it was only a hundred meters away from it.
The Boss Monster had also noticed over a hundred Rank 1 Monsters observing it from a distance, but it didn't bother to kill any of them.
A Rank 1 monster was nothing in its eyes, and even eating them wouldn't be satisfying.
After two hours with nothing happening, the Chenoo assumed that its opponent had decided to run away.
It didn't find this surprising, confident that, within its domain, it was invincible.
This was not born out of arrogance but of self-awareness due to its understanding of its strength and environment.
A Chenoo could be considered an Ice Demon that inhabited snowy mountains, devouring travelers who had strayed into its domain.
Since the battle was over, it decided to return to its home, which was only a mile away from where it fought with Rocky.
When the Boss Monster entered the cavern, it didn't find anything amiss, so it continued to walk toward the underground cavern, where it usually rested.
Within the 11th Floor, it was the King, the Lord, and the Sovereign of all monsters living inside it.
They exist only to be consumed by this feral monster, who didn't even bother to enlist the Rank 5 Alpha Monsters to be its subordinates.
Everyone inside its domain was treated as food, and it wouldn't form a friendly relationship with its food.
Once it finally arrived at its resting place, the Chenoo lay on the ground like it usually did and closed its eyes.
However, a few seconds later, the ground under it gave way, making it fall into a pit that extended for miles deep under the ground.
The Chenoo was caught completely by surprise and tried to look for something to grab on.
Unfortunately, Thirteen had already considered this possibility, so he made sure that the hole was wide enough to prevent the Boss Monster from finding something to hold onto, preventing its free fall.
For a brief moment, the Chenoo thought that it was falling into a bottomless pit.
But a minute later, it saw something red within the darkness, and the temperature suddenly rose drastically.
A minute after the Boss Monster fell from the trap that Thirteen created, it fell into a pool of lava, making it scream in pain.
"Welcome to my world," Thirteen said as he sneered at the Monster, who had given them a hard time on the surface.
The Chenoo, who had heard Thirteen's voice, immediately tried to use its ability to freeze everything in its surroundings, but Rocky was faster, tackling it without mercy.
While the Boss Monster reigned supreme above ground, having the environment bend to its will, it was entirely different below ground, where Thirteen and Rocky had prepared a trap to counter its abilities.
Rocky dragged the Chenoo's struggling body to the deepest part of his Lava Lake, as part of Thirteen's plan.
The moment they hit the bottom, Rocky immediately retreated as per his Master's order.
As if waiting for that moment, the Lava surrounding the Chenoo immediately became frozen, turning into crystals as the Chenoo made a last-ditch effort to free itself from its hellish environment.
What it didn't know was that it only sped up its doom. When the magma was cooled, it instantly solidified and turned into crystal, trapping the monster from within.
Despite doing its best to free itself from its prison, the Chenoo was unable to break free, suffocating from the lack of oxygen in its surroundings.
Thirteen observed the situation through Rocky's eyes and waited for the monster's death.
He didn't dare to act prematurely just in case the Monster had entered some kind of near-death state, allowing it to slow down its heartbeat.
If he moved to check the Chenoo's condition by breaking the crystal, there was a chance that it might regain its freedom.
No matter how confident he was that the Boss Monster wouldn't be able to return to the surface even if it managed to escape its crystal prison, Thirteen didn't want to take any chances. He only quietly observed what was happening above and below ground.
A few minutes later, a portal appeared in the cavern that served as the resting place of the Chenoo, confirming that the Boss Monster had finally taken its last breath.
The members of the Parade of a Hundred Demons, who were standing guard outside the cave, reported that the Blizzard had stopped completely, further confirming that the Chenoo had finally been defeated.
"Rocky, take it inside the Mobile Fortress," Thirteen ordered.
Rocky nodded and started to melt the Crystal that trapped the Chenoo in place.
Although its body was burned in some places, it was mostly intact, which meant that it could be used as material for crafting.
The Monster's Core, which was silver in color, emitted an icy mist, making Thirteen rub his chin as he pondered on what to do with it.
After careful consideration, he summoned his Soul Keeper Armor and allowed it to absorb the Monster Core.
Since it was an armor that could evolve infinitely by ingesting Monster Parts, as well as their Cores, Thirteen believed that he would gain some sort of Ice or Cold Resistance, which would be helpful if he ever fought in such an environment.
'Well, then. I guess I need to inform everyone where the portal is located,' Thirteen thought.
After pondering for a few seconds, an idea popped inside his head, so he immediately ordered his Monster Army, as well as the Parade of the Hundred Demons to start planting signs that pointed in the direction of the portal.
He even made sure to write "Portal is this way!" on the signs, to ensure that everyone would find the location of the cave, where the portal was currently at.
Since he didn't know where the Wanderers would appear on the 11th Floor, he asked his Monster Army to put signs all over the place.
This made sure that they would find what they were looking for the moment they arrived at the Winter Wonderland, which had now lost its Sovereign.