At this moment, Leo was standing still on an inconspicuous side while watching how the situation would unfold.

Obviously, sooner or later the remaining alive Black organization men would notice that the others who were given time to rest were unknowingly killed. As soon as they found out about that, their leader, Richton, would surely either issue a 'retreat' or 'be cautious and continue their mission' order.

Unfortunately, neither of the two choices could escape Leo's grasp.

To be honest, the moment he had successfully killed all of the resting men at the rear, what would happen next was that the remaining alive Black organization men have now fallen into the depths of his trap. No matter what they do, none of them would be able to escape the cave alive anymore...

If Richton issued a retreat order, his men would obviously fall into a panic state while retreating. An unknown person was currently hiding in the dark, bidding their own time, and at any moment would attack anyone of them. Obviously, that would cause panic to anyone as long as their breathing and alive. No one would be willing to become the next person to die, after all.

That panic state was what Leo aimed for in the first choice. The retreat order would allow him to be able to freely strike them one after another without worrying about any counterattack, since all of them would be focusing on escaping the place as soon as possible.

Also, when the Black organization men fell in panic, it would then allow him to use his Earth Elementals freely and openly. Even if they could indeed arrive at the exit, death would still await them since an Earth Elemental could just block the exit using its in-born Earth Manipulation ability. Being an Earth Elemental, they of course were given the natural ability to manipulate the surrounding land, specifically 5-10 meters in diameter, as it depends on Leo's capability at this moment.

The problem of secrecy was not a problem in such a situation too, since all of them would surely die anyway. Hence, no one could spread Leo's secret outside of the cave anymore.

If ever Richton issued the second choice, which is to be cautious and continue the mission order, that would obviously cause the dissatisfaction and unwillingness of his men. Who in their right mind would even bother continuing the mission if an unknown and hidden person could take their life at any moment? And even if they would follow the order, it would be mentally taxing since they weren't only paying attention to the battlefield anymore, but also to their own safety.

That mentally taxing moment was what Leo aimed for in such a choice. The moment the Black organization soldiers became really tired physically and mentally, that would obviously allow him to do the same thing as the first choice; he would be able to freely and openly kill them one after another without any worry. All of them don't have any energy to fight, hence, he could do anything to them at that time.

That was what Leo's goal from the very beginning; to eliminate them all.

Now that all of them were within his grasp. Trying to escape was now deemed to be impossible!

"Forward or backward, what would be your choice, o' dear leader?" Leo whispered silently to himself while standing still in the dark.

To be honest, one of the reasons why Leo decided on this plan was actually after hearing the voices of dissatisfaction from the soldiers he had killed awhile ago. If he didn't know that they were actually feeling dissatisfied about their leader, then his plan would have been different at this moment.

The current situation could somewhat be called as, 'The leader of the Hyena tried lifting a rock, thinking he could easily kill the Zebra. But unfortunately, the rock fell onto his own feet. Simply put, without the incapable Leader, then Leo would obviously not be able to complete such a plan.

"Continue with the fight!"

After a while, Richton finally decided to look back to ask for reinforcement from his resting men. However, he immediately became infuriated seeing that the others had actually thought of sleeping while the others were busy fighting the Magical Beast in front of them at the risk of their very own lives.

"F*ck! Come here and help us!" Richton yelled out loud.

However, not a single one of his resting men made any move at all.

"You... You bunch of crap actually dared to ignore me!" Richton yelled out loudly again. But this time he had sent out a Fireball spell along with his shout, of course indirectly away from his sleeping men, just enough distance to wake them up with the sound.

*Booom!

The Fireball spell landed and immediately caused an explosion. The wind produced by the explosion was strong enough to hit the body of one of the resting men, which should be enough to wake that person up.

Contrary to Richton's expectations, though, the unfortunate dead body flew a few distances away immediately after receiving the wind pressure of the Fireball spell.

"That's what you get for infuriating me!" Richton exclaimed, seemingly sounding proud instead of guilty after seeing the resting soldier flying away due to his Fireball spell. Though he didn't expect such a thing to a situation, he was still feeling proud of how strong his Fireball spell was. The wind pressure produced alone by his mere Fireball spell had, after all, caused a person to fly a few distances away.

However, Richton quickly realized that the person that flew away didn't move anymore after landing on the ground. He immediately felt something was wrong as he fell into a panic before quickly rushing towards that person.

Arriving in front, Richton immediately put his hand nearby the nose to check if this person was still breathing.

"Dead... Did I just kill one of my men?" Richton said in a bit of panicking voice. Fortunately, no one was paying attention to his side, since he had ordered everyone to focus towards the battlefield in front before calling out for reinforcement.

Although Richton had indeed thought that he had killed one of his men, he wasn't stupid enough to actually believed it. He only threw a Fireball spell, and on top of that, only the wind pressure produced by the explosion of the Fireball spell hit this person's body. Even though it had also caused this person to fly away from a few distances, that was still not enough to really caused this person's death.

With that thought, Richton quickly began looking around the body as he soon after shockingly discovered a wound in the left chest, specifically the location of the heart. The wound was deep and was also obviously caused by a dagger. He was 100% sure that the aim of the dagger was the heart, and obviously, the purpose of doing that was so that this person would die immediately, hence not causing any sound to warn the others around.

Richton immediately realized the direness of their current situation as he quickly turned his head to look at the others. Their posture might show that they were currently just taking a rest, but he was aware deep inside that everyone was already dead at this moment.

"Everyone! Fall back to my position this instant!" Richton immediately yelled out to the others currently fighting in front. If his guess was correct, then only by gathering together would he be able to stop the assassin from killing more of his remaining men.

Although, the order of Richton was so out of a sudden and the others who were currently fighting didn't know what the purpose was all about at all, they still didn't hesitate to follow his orders. After all, he was in charge of this operation. Simply put, Richton was the leader, and they, as his men in this operation, should follow him no matter what.

Quickly arriving around Richton's location, someone can't help but ask, "What's wrong, Boss?"

"There is an unknown intruder!" Richton decided not to hide anything anymore, since they will find out that the others were already dead, anyway.

After hearing Richton's words, it immediately caused the remaining 19 men to become shocked.

"Boss, you mean..."

Everyone immediately realized what Richton really wanted to say.

"Everyone aside from us is dead!" Richton said to further confirm what everyone had realized in their minds.

"But, Boss, we didn't notice anyone around aside from us!" One of the men quickly rebutted.

From the moment they came inside the cave until this present time, they have never found anyone tailing behind them at all. They had already stayed in this cave for roughly around less than or over 5 hours, but throughout the duration of that entire time, no one aside from them was spotted being present inside the cave.

"Stupid! Would they be called assassins if we could easily find them?!" Richton exclaimed in anger. Assassins were called that way because of the reason that no one could know their whereabouts unless the target had known beforehand or only after the assassin had attacked.

"Yeah..." The other quickly realized.

Richton was indeed correct. After all, the explanation of the word assassin simply describes a person attacking someone surprisingly or unexpectedly. With that definition alone, it is already meant to say that the assassin was hiding in the dark somewhere around them while waiting for any moment to launch a surprise or an unexpected attack to any one of them.

"We only have two choices now, either to keep ongoing forward or to fall back for a retreat." Richton immediately followed up.

Just like what Leo had expected, it was only these two choices that the leader would present to his other members. Either to keep moving forward or to fall back for a retreat. But no matter what choice it was, it would still be the same story as his grasp doesn't have many ways of escaping.

"Now then, what would the other choice..." Leo thought deep inside his mind while the dagger in his hand was already being gripped tightly, ready to strike any moment from now.