I'm a monster in Demon King's Castle

The mind of the Fly Demon behind the wall was actually quite complex.

First of all, naturally, Eye Demons were arranged within the tunnels beneath the audience stands. The Eye Demons also saw the four heroes rushing in like a swarm. Everything was proceeding according to plan, but the hero lagging behind, while passing by the wall, inexplicably had a bone hand reach out from the wall, smashing open a passageway.

The Fly Demon was exposed to the heroes.

The bone hand was, of course, Li Yue's. Li Yue pulled himself into the wall.

After breaking through the wall, Li Yue directly stretched out both hands and tore off the Fly Demon's two clusters of eyes—the compound eyes were ripped and skewed, completely disrupting the Fly Demon's vision.

Immediately after, Li Yue completely blocked the Fly Demon's sight, leaving it only able to see darkness.

Even now, the Fly Demon couldn't figure out where the bone hand came from, or how the heroes discovered it.

"What are you doing hiding here?" the hero spoke, using the common language of demons.

【Quickly, call the experimental subjects to save me, buzz...】

The Fly Demon vibrated its wings, the buzzing sound resonating within the compartment, signaling the monsters outside the tunnel to come to its rescue; however, after only a slight tremor, the Fly Demon's wings were torn off by the hero, rendering it unable to make any further movements.

The compartment was quite cramped. There weren't many in the Colosseum, making it convenient for the Fly Demon to collect bets during the Slaughter Cup, and also convenient for observing enemies in a dangerous location during battle.

Li Yue silently mourned for them.

【Meeting starting... returning for war preparations... embarking...】

The Fly Demon twisted its body, seemingly wanting to retaliate, but as soon as its mouthparts moved, Jessie would tear at them; if its limbs moved, they would also be torn. In the end, it was left with only a bare fly stick.

【Master... at the Abyss Maw retreat meeting...】

Because the Colosseum Lord had strong control over the outside, no Eye Demons were deployed, and they were even hidden directly in the consciousness of the demons?

The two experimental subjects didn't seem to find the eight heroes and were still searching within the intricate tunnels of the audience stands; Jessie barely managed to determine the positions of each Eye Demon's perspective, compared the routes, and finally sewed his forebrain back together with binding thread before kicking open the wall and setting off again.

It was as if he had connected to the entire Colosseum's surveillance cameras. In an instant, Yan Jian saw countless perspectives, the active Colosseum—high-level gladiators preparing, the constantly gathering skeleton legions, the arrayed armor, the spear-throwing Abada...

Except for those two chimera-like monsters.

This wasn't the so-called danger zone?

Li Yue grabbed the Fly Demon's neck and pressed it against the wall, sensing the experimental subject, which looked like a chimera, running past in the tunnel, chasing after Jessie's trio.

At the same time, when intruders entered the Colosseum, the Fly Demons would also open a betting pool, betting on which level of defense the intruders could break through, which gladiator they could kill... The pitiful Fly Demon right now had bet that the seven heroes would die at the hands of the two experimental subjects, so it rushed over at the first opportunity, preparing to pick up anything they left behind before their deaths, such as Li Yue's silver armor, Karl's silver spear, and so on.

"What is this..." Jessie tested the adhesion of the blood vessels, unsure whether to tear them off.

If it weren't for needing the town elder's permission to set up a stall in the Demon Market, Jessie would even want to transform into a merchant and set up a stall in Deshler to sell materials from the illustration book.

And exchange for a few more Brain Spirit pituitary glands. The Brain Spirits could use them directly—although exchanging for a Brain Spirit pituitary gland required consuming ten thousand points of goodwill, it was currently the material with the lowest consumption in the Demon Illustration Book...

The Fly Demon only turned over a few thoughts in its mind before the bundle of blood vessels was mercilessly torn off by Yan Jian and stuffed into his pocket—Jessie planned to connect it to the pituitary gland and try it out after confirming that he wasn't being watched, perhaps he could open the full map.

Jessie looked at the blood vessels in his hand, then at the countless compound eyes on the ground covered in mucus, thinking that if the Fly Demon joined the Demon Expeditionary Force, it could indeed contribute to compiling battle reports, and also eliminate the Expeditionary Force's excrement.

Jessie wasn't sure if he could just forcibly connect the Eye Demon's blood vessels, but at least the pituitary gland was a sensor, and it had a natural control effect on demon relics with "living" characteristics, so it was worth a try...

Most of the Fly Demon's head had been torn off, but it was still barely alive, though it could barely move its head.

The eighth level of defense was to order eight hundred elite gladiators to resist the enemy, equipped with armor, skeleton soldiers, and wing demons; but if they encountered enemies that the eighth level of defense couldn't handle, the Fly Demon would use monsters collectively known as "Beasts" to enter the arena, which was the seventh level of defense.

Yan Jian hadn't fully thought it through, but suddenly saw in the field of vision closest to the danger zone... a very unfamiliar figure sticking out.

And once the seventh level of defense also failed to stop the enemy, the Fly Demon would notify up to eight hundred gladiators, who would voluntarily fight until the intruders died, or until all the gladiators were killed.

Jessie hadn't expected the Demon King City to have such convenient designs for heroes, marveling at the magic of this world, and even decided to search the library thoroughly when he returned to see if there were any similar blind spots.

The Fly Demon finally sensed that something was wrong, but the more it tried to think, the more it would think, so the Fly Demon, which only had its body left, still revealed the general situation of the Colosseum in its heart, and Jessie listened to it without missing a word, even memorizing it firmly and replaying it repeatedly.

At the same time, the map of the Colosseum began to be outlined in Yan Jian's mind, everything gradually became clear, and Jessie even had the illusion that he had become the Colosseum Lord.

What made Jessie quite surprised was that in the Colosseum map outlined in his mind, there were three completely blank locations, one of which was the corner that Li Yue's group of eight was running towards!

"Where is their master?" Jessie asked, grabbing the Fly Demon's neck with one hand.

Everything came into view, and at the same time, a huge amount of information impacted Jessie's mind—fortunately, Jessie's "advanced" brainpower had been strengthened, and even without the blessing of "absorption", he could barely digest the scene before him.

【Bite your fly butt... Can this person hear my thoughts...】

Or just blow up the VIP room with a cannon?

"What is the overall defense mechanism of the Colosseum?" Jessie asked the last question.

This surveillance system composed of Eye Demons... Maybe I should also get a set in the library in the future?

Grabbing the Fly Demon's neck, Li Yue also touched the extra blood vessel that had grown out, and always felt that this Fly Demon looked a little different this time.

【Eye Demon's blood vessels... vision sharing...】

"When will they return?" Jessie asked one question after another, with almost no pause in between.

Jessie was at a loss.

In a place where the Fly Demon couldn't see, Jessie's other bone hand stretched out segment by segment, stroking the broken wall, silently piecing the broken bricks back to their original shape, Van Helsing disappearing into the tunnel out of thin air.

From beginning to end, the Fly Demon hadn't answered any of Jessie's questions with buzzing sounds, but its thoughts were very cooperative, giving Jessie the information he wanted, which didn't even take a few minutes in total.

The Fly Demon was dead, but Jessie wasn't in a hurry to go out and join up with Yan Jian and the others, but instead lifted the scalp and skull of his forebrain, revealing the thick "Brain Spirit Pituitary Gland".

Just as he had guessed before, when Oogie Boogie wasn't around, the Colosseum's daily defense was indeed led by the Fly Demons and was divided into eight levels.

"Understood." Jessie finally tore off the Fly Demon's head, watching the magical power on its corpse gradually dissolve, returning to a wisp of wandering soul of the Colosseum.

Huh? How did this person come here?

As for the method to confirm whether you are being watched is also very simple, just see if there is a pop-up message.

After all, these are the first few days that heroes have entered the city in a hundred years, and the relics of these heroes are still rare items in the Demon King City, which can be exchanged for a lot of good things.

Now that the full map is open, the Colosseum is instantly more fun—should I pull the heroes into the encirclement and eat them clean? Or should I make a few traps and get some materials like "Iron Essence"?