Leo walked quickly to his assigned location. He didn't even bother asking about the whereabouts of the net bags, since he already knew that he can find them from around the corner of the sewer wall.

Moreover, Leo already knew how he can easily finish this mission. Like from the last time at West Sewer Management, he only needs to look for the Magical Beast nest, which is simply located from holes around the sewer wall like the last time.

It was reasonable why Magical Beast hide within the walls of the sewer. Obviously, the Magical Beast cannot just go in and out of the East Sewer every time, since doing so would most likely cost them their lives. After all, even if the East Fortress is busy, they would still check the east sewer from time to time. If they spot dozens of different Magical Beast running in and out of the place, they would naturally eliminate them. So, the Magical Beast could only create a hole in an inconspicuous place and make it their new home.

After a while of looking around, Leo finally spotted a Magical Beast Rat, specifically a Sewer Rat. Instead of throwing out his Earth Elemental like before, which was at this moment in toy-soldier form, he put his hand in front and casted a Wind Sword.

The Sewer Rat still didn't notice Leo's presence, so he wanted to test out using a Magic spell on the Sewer Rat.

Throughout Leo's mission during the escorting of Veronica, he wasn't able to try casting a lot of Magic spells. Since, at that time, he was always in a rush, hence his casting would be useless because it would always be interrupted.

When he was running from the Magical Knight, he was frantically running, so casting a Magic spell would obviously be interrupted. When they were ambushed, he wasn't allowed to get out of the guards' wagon, so he didn't have any chance to try casting a Magic spell.

In conclusion, he wasn't able to try out his capability as a Mage after learning how to cast a Magic spell.

So, this time he wanted to try it out.

Putting his hand up in front, Leo started gathering Pure Mana around his surroundings. Afterwards, he slowly converted the Pure Mana into Wind Mana.

*Whoosh!

Quietly, three Wind Swords were formed, hovering slowly in front of his hand. He soon understood that there was no need to keep on putting his hand in front the moment he successfully casted the Magic spell. The Magic spell would just stay in one place, waiting for it to be used or to run out of the Element Mana it's made of.

However, instead of throwing the Wind Swords towards the Sewer Rat after casting it, Leo went to grab his Glacier Bow fasten at his back.

Putting the Glacier Bow in front of him, he carefully put the three Wind Sword, making it into the arrows of the bow.

*Whoooosh! *Whooosh! *Whooosh!

Three Wind Swords shoot quickly out from the Glacier Bow, aiming straight towards the Sewer Rat.

*Pssshh!

Unfortunately, though, not a single Wind Sword hit the Sewer Rat.

The Sewer Rat quickly escaped the moment it noticed Leo's presence.

Leo could only shake his head, seemingly mocking his shooting skill by using a Wind Sword as an arrow.

Well, it was reasonable since using a sword, like an arrow is not as easy as he thought about.

Quickly, Leo threw out the Earth Elemental and ordering it to follow closely behind the Sewer Rat.

Since Leo understood that his mission was much more important than testing his skill at this moment. So, without wasting any more time, he quickly chased behind the Sewer Rat. Wanting to follow behind it until it eventually leads him into the Magical Beast nest.

Soon, just like what Leo had expected, the Sewer Rat directly went inside a long crack on the sewer wall. He paused for a bit, marveling at the hole; it was surprisingly bigger than the Sewer Rat itself. He could even somewhat conclude already that the hole was used by almost every Magical Beast of the East Sewer. He was absolutely sure that this was the hole that will take him to where all the Magical Beast in the East Sewer was hiding.

After a bit of marveling, Leo quickly went inside the long hole. The Earth Elemental was already inside, so he needed to quickly follow behind.

The inside of the hole was surprisingly getting wider and wider the longer Leo travel inside. Soon, he arrived in a really wide place. He paused in his step as he became dumbfounded at what he saw in front.

The thing in front of him was just a cave, nothing of importance. However, he could somewhat compare this cave to the last time at the West Sewer, really, the cave was almost the same.

A few Lightstone in the rocks was giving a lit bit of a source of light throughout the cave. Pebble size sky blue colored Mana stones could from time to time be seen as Leo traveled deeper.

*Bang!

Suddenly, while carefully walking, Leo heard a rock hitting against a meat sound. Quickly, he went in that direction to find out about it. Soon, he saw his Earth Elemental, standing on its own two feet while the Sewer Rat from before was penetrated through with its hand.

Leo immediately ordered the Earth Elemental to end the Sewer Rat's life before putting it on the ground. Then, he went to the rat and cut its head, putting it inside a net bag.

Fortunately, Leo had brought with him plenty of net bags that he had found along the way. After all, he was already expecting that he will be able to find out the layer of the Magical Beast, though not as easy as this.

After that one Sewer Rat, Leo continued walking deeper inside the cave. Surprisingly, though, there were only a small number of Magical Beast around the cave, and the majority of them were really weak, too.

However, what was really weird about the cave was when Leo walked deeper and deeper, he soon found out some mutilated bodies and bones of Humans on the ground. There were also weapons scattered on the ground, a really obvious sign that a battle had happened in this cave not long before.

It was really a curiosity-inducing scene. Think of it this way, this cave was the layer of Magical Beast, it is still reasonable why there would be a fight between Magical Beast and Humans inside, hence what explains the bones, but there were just too many of the Humans mutilated bodies and bones around. Obviously, this just shows that there was a big fight, but why though?

Did the people from the East Fortress find this place and voluntarily exterminate the Magical Beast layer? Obviously, it wasn't the case since the clothes of the dead Human bodies were not from the East Fortress. But instead, a black outfit, something akin to what assassins or people working in the dark would usually wear.

Moreover, Leo saw some silver tokens laying on the ground with Black colored Bees, Black colored River, and a Black colored Weed as a symbol. There was even a golden token with a Black Skull symbol from a dead Human wearing a Mage robe, obviously showing that a Mage had also died during that fight.

Finding the tokens, Leo's face immediately became cold. He immediately recognized that this group of people was definitely from the Black organization, the unknown organization that was running rampant within the Northern region of Silver Kingdom.

The Black color was the Black organization's identity, as the Bees, River, Weed, and Skull, explain their whereabouts. Black Bees from Honoris city, Black River from White River City, Black Weed from Green Weed city, and Black Skull from Crystal Skull city.

"What were these people of the Black organization doing in such a place?" Leo can't help asking himself.

For the Black organization to deploy dozens of its men from its different branches to this place, obviously it only meant that they were doing some kind of a secret move within East Sewer.

This also explains why Leo didn't find a lot of Magical Beasts while he walked deeper inside the cave. At first, he thought that he might find plenty of them later on, in the really deeper part of the cave. But he was wrong since he only found one Sewer Rat and a few more weak Magical Beast.

Then, he also thought that maybe a One Star Magical Beast was nearby and the place he was walking into was its territory, so no Magical Beast was nearby the area. But again, it wasn't the case, since no One star Magical Beast had attacked him yet.

So, the only conclusion that Leo arrived at was; the Magical Beast in this layer had a huge fight with the men of the Black organization, hence causing the deaths of the majority of the Magical Beast and the casualties to dozens of Black organization men.

Moreover, this could also confirm that the Black organization was indeed doing some kind of a secret move within the East Sewer. But what move, though?

For the Black organization to deploy dozens of their men. Surely it's something really important, right?