I'm a monster in Demon King's Castle

On the other side, Yingying was also shocked—it had long known that "Skorlek" was a brain spirit, but it had just realized that Budibog had absolute control over brain spirits.

How was this battle to be fought?

This brain spirit slaughtered its way out of the blood river, massacred half of the demon spawn, and finally set its sights on its own master, Budibog…

Did he know? He must have known!

Knowing that Budibog was the Lord of Brain Spirits, how could there still be such an act of rebelling against the Lord of Authority?

Just how bloodthirsty was he?

Yingying looked at the brain spirit floating towards Budibog, feeling a touch of admiration for no reason—this was the true devil…

What would happen next, Skorlek… bah, what kind of surprise would that brain spirit come up with? Could he really resist the authority of the Lord of Brain Spirits?

Yingying felt that Li Yue should already be in a desperate situation, but even so, he didn't hear Li Yue cry for help, silently respecting him… and also looking forward to it even more.

In the center of the cave, Li Yue was irresistibly approaching Budibog, all the bones and bone ashes had already fallen to the ground, as if dead.

As for Li Yue… of course, he wouldn't give up.

Even with irresistible authority, even with "Rebellion" taking effect…

Even if he died, he would explode.

"Withering Thorn stabs itself, thereby killing…" Li Yue tried hard to summon the bone sword on the ground, but once he turned his thoughts towards Budibog, he would immediately fall into stagnation, unable to think further.

Closer and closer, it seemed that nothing could stop Budibog from devouring that lonely brain spirit.

"No, start over… Withering Thorn stabs itself, Withering Thorn stabs itself…" Li Yue abandoned all irrelevant reveries, with only a self-stabbing scene left in his mind—in the scene, the bone sword pierced into Li Yue's brain spirit body just like before, the tip of the sword fully entwined with withering death energy.

There was no chance to change anymore, Li Yue had already been sucked into Budibog's mind-controllable range, the next second, whether it was devouring or crushing, was only a matter of the Brain Spirit Lord's thought.

[Die… the culprit of the Library turmoil… become my nourishment… ]

Budibog quietly admired the scene of that weak brain spirit gradually being sucked into his body, until a sword suddenly appeared in the scene, a bone sword gleaming with black light.

"Hmm?" Budibog had just noticed something was wrong, when a moment later, he was held against the silver scales by the bone sword.

Seemingly affected by "Rebellion", the withering death was not fully wrapped around the sword, only a tiny bit at the tip; but that aura still crawled towards the junction of the scales, seeping into Budibog's body.

"Pain!" Budibog was shocked and hurriedly changed his mind, giving up devouring Li Yue, and preparing to crush him with a thought force!

And Li Yue also regained his sanity for a moment, having escaped the control of the Brain Spirit Lord's authority, his body continued to crawl towards Budibog's scales, while quickly changing into a new "Skorlek"!

That was the fresh malice just obtained from Budibog, extreme malice.

The moment Skorlek reappeared, he was crushed by Budibog's mind, but Li Yue, protected by the flexible binding thread, was injured but not dead, enduring the feeling of exploding and continuing to advance, while…

At the same time, he used all the malice to exchange for bones, throwing them out in one go, dispersing the mind pressure of the Brain Spirit Lord.

The bone river erupted beside Budibog!

Then the bone river solidified and shattered beside Budibog!

It was endless like this, even making Budibog unable to cope for a while; however, the Withering Thorn still hadn't taken shape, only corroding a small piece of silver scale, and only then began to spread on the silver scales.

Li Yue braced himself, constantly exchanging the malice from Budibog into bones, barely resisting the constantly weakening mind—two completely different minds were deadlocked in the center of the cave, only seeing which side would fail to support first.

Forward, forward, forward… Li Yue had no other thoughts in his mind, just mechanically exchanging bones, summoning the Withering Thorn—Li Yue only took summoning the Withering Thorn as his goal, forcing himself not to make any associations.

And Budibog, after failing to kill Li Yue with the first strike, thought a lot, and finally, when the constantly emerging bone river and bone thorns appeared, he had a slight intention to retreat.

[As long as I pull away, find that lowly servant, one mind attachment… I can make him self-destruct… ]

[Damn… if I hadn't used all the magic power in the Library to heal my injuries… I could have buried this bastard alive with earth… ]

Budibog tried to retreat, and it was at this moment that the summoning of the "Withering Thorn", which had failed countless times, finally succeeded—the tip of the sword, entwined with death energy, transmitted a trace of touch back to Li Yue, a trace of touch that pierced through flesh and blood.

Even if it was only a little bit.

"Ji—" A sharp cry of pain erupted from Budibog's body, the silver scales quickly disintegrated, layering to block the surging bone river that was coming at him.

However, having been directly hit by the Withering Thorn, the silver scales became extremely dim in the process of blocking, and even turned into flying ash under the ravages of death energy, weakly stirring in the air, like a footnote to a dead river.

"Enough." Li Yue's body retreated under the wrapping of the bone river, finally able to breathe a sigh of relief, chuckling and announcing the battle results—the Withering Thorn hit, Li Yue could already sense that his mind and aura were rapidly declining.

As long as it hit, that was enough.

Next was the life-saving moment, first escaping Budibog's mind range, to prevent being summoned and fused by him again—while retreating, Li Yue further released more binding threads, firmly wrapping around the stone pier and protruding rock crevices, trying to distance himself from Budibog.

And this "Enough" fell into Yingying's consciousness, and he tasted a different meaning.

Enough? Next, watch my performance?

Yingying suddenly stretched out, attacking from the rock wall behind Budibog,

Budibog originally wrapped the remaining mind around the bone river, not wanting to drag Li Yue down with him, but Yingying's appearance made him fall into chaos again.

[This deadly combined attack… and that death energy… how to solve it… ]

[Damn… if I hadn't used all the magic power of the Library to heal my injuries… ]

[Escape… escape from here… since I know the enemy is a brain spirit… I only need to recover a little magic power… to summon him to his death voluntarily… ]

Budibog pulled back his mind, trying his best to prevent death energy from lingering on himself, avoiding contact with Yingying while escaping towards the rock passage he came from.

Like a flour bag that had been punctured—Budibog's body was constantly being eroded and broken, erupting with the last of his strength, scooping up a strange arc, barely avoiding Yingying!

"Right now…" Li Yue beckoned Yingying to throw out the bones and thorn nets that had long been stored in the shadow space, blocking Budibog from escaping—if he really escaped, Li Yue believed that the Brain Spirit Lord had a hundred ways to kill him.

The shadows spreading from the ground were like exploding hedgehogs, several thin shadow thorns shot towards the blank space under Budibog, while ten "Skorleks" each wearing thorn nets appeared in mid-air, baring their fangs and claws, embracing Budibog, whose body was constantly dissipating!

[The last of my strength… force them away… then I can… ]

Budibog used the last of his "Soul Shock", a mind smashed the shadows on the ground and the skeletons that were pouncing, but was intercepted by the thorn net when it was only a short distance from the rock passage.

"Tzz…" The sound of wolf teeth and bone thorns grinding through the meninges rang out, Budibog was covered in brain fluid and sludge, trapped in dozens of thorn nets.

Wailing, struggling, retreating… In Budibog's constant cycle, brain fluid and sludge flowed on the ground, and the corpses surrounding Li Yue gradually melted.

Sensing that Budibog was gradually withering, shriveling, and dying, Li Yue instead put on a new body again, and wrapped his binding threads even tighter, then transmitted his thoughts to this dying Brain Spirit Lord, squeezing out the last bit of his malice.

"Thank you for your protection…" When Li Yue transmitted his thoughts, he directly extracted the scene of Bodekoli chasing him to the Library and showed it to the Brain Spirit Lord.

[It's him… Oogibogie was chasing him back then… ]

[Malice + 3444]

[The brain spirit from the Fifth Library that I pushed out to participate in the arena… ]

[Ah… the arena… Oogibogie… ]

[Malice + 4444]

When malice erupted, Yingying's shadow thorn finally pierced into Budibog's body—a cavity suddenly appeared on the dark brown brain spirit body, and all the remaining brain fluid and sludge exploded out.

"Pa!" Budibog died, with only a fart sound.

The entire Library suddenly shook, as if a lock had been pried open, from Budibog's body, from the air in the space… thick magic power leaked out.

[Killed a high-level demon, obtained 1 demon point… ]

Budibog turned into a blood corpse, a faint light rising.