Targeting the red line on the third intruder's body, Felix's knife stabbed deeply on its back.
"Tsssch~"
The sound of piercing flesh resounded as the man flinched in pain at the sudden attack. He hurriedly turned around with a horrible expression and noticed a silver-haired boy trying to get away.
"Y-You..."
He stood up angrily not giving a chance and kicked at the boy who was thinking of escaping after dealing him an attack.
Felix tried to dodge the kick but the man was faster as his legs strongly hit his stomach. The force of the kick blew him away as his back hit against the wall.
"Kuff-"
He coughed out blood and looked terrifyingly at the man who was standing tall with a malevolent face.
"You fucking rat were you the one who killed him?"
The man's hideous face turned painful as he clutched the knife from his back and tossed it away letting his blood fall on the floor.
"Nice luck but it all ends here....."
He turned back to stare at Felix and slowly walked toward him taking out a blade from inside his robes while keeping his back straight.
Staring at the man who was about to kill him, Felix looked around the room in panic and racked his brains for a plan.
'There's no way I can fight him head-on...that means I've to run away and find another opportunity to strike.'
Quickly coming up with a plan, Felix held his stomach and stood up before dashing out of the room with all his leftover energy.
The man just shook his head and gave chase to the injured boy who thought he could outrun him. But the moment he came out of the room, he stood there petrified as the boy was nowhere to be seen.
"W-What? But how?...."
He had no idea how the boy whom he kicked hard on the stomach could run so fast that he just vanished when they came out of the room.
While the man paced around, the ground beneath him had slight waves that he could not feel as he was busy looking for any trace of the boy.
When Felix swam through the floor and finally reached right behind the man, he slowly peeked out and activated the 'Ratio Technique' skill.
Staring at the red line, he took a deep breath, activated 'Silent Steps', and slowly came out from the ground.
This time the point of weakness was on his neck, so he had to hold the knife with both of his hands and strike in an upwards direction.
With the slight increase in speed from the stealth skill, he quickly reached the intruder only for the man to turn around at the last moment.
Felix did not stop, no, it was more like he could not stop. The man widened his eyes at the gradually nearing edge of the sharp knife and tried to stop it from reaching him by punching quickly at the boy.
"Pllukkkcchhhh!~"
But it seemed nobody wished him luck on this mission as the knife stabbed deeply from under his jaws and crushed the inwards of his head.
Even though he was already dead from the strike, his hand remained in motion and heavily punched the fearless boy on the chin.
Felix again blew away from the hit and crashed on the ground while the man stood still for a second and fell back with a thud. Barely having any energy left to stand, he peeked at the corpse of the intruder and let out a sigh.
"F-Finally, it's over....."
His mind suddenly started getting hazy from the pain in his head and he slowly lost consciousness lying on the cold floor.
A deep silence issued on the floor as it gradually started getting freezing cold.
When the fight ended with no movements, black mist seeped about in the scene as the only spectator of the fight revealed itself.
"Kekekeke....To think I would get to witness such an amusing fight after such a long time. Also, what was that ability from the little boy."
An eery androgynous voice sounded which seemed it could sway the mind of the weak-willed.
The dark mist gathered around and formed a creepy shadow that looked irregular in shape. It just had two otherworldly black eyes that sucked every light in the surroundings.
It floated above the floor and changed its shape into many forms as it flew toward the boy on the ground.
"But still....those silver hair of the boy reminds me of someone. Hmmm.....who was it?"
The shadow stared intensely at the boy in deep thoughts but then it just shrugged with its gassy 'shoulders' in the end.
"Ugh whatever, I don't remember much of the past though. Kekeke I must be getting old, but wait do I even grow old?"
Tilting its head, the shadow narrowed its eyes before giving up finding an answer to his stupid question.
"Sigh, there's no point in living for so many years when I don't remember anything and can't even find any answers to my questions."
The shadow turned back to look at the unconscious boy and its black eyes shone bright like it found what he was looking for.
"Well, for now, I think I can find my answers by being around this kid. He has those weird abilities so he must be capable of achieving a lot in his life."
With no other choice, the shadow circled around the kid before it became small and attached itself to the left ear of Felix in the form of a black earring.
The floor again turned into absolute silence as the fate of the young boy remains untold in the grand scheme of the world.
*****
Noah and the kids were scared when Felix ran out alone. They thought he was going to get himself caught and let them safe.
But they did not want that to happen, so unwilling of just sitting in the room doing nothing to save their friend, the five of them pushed against the the old rusty door.
Even the thin Thomas and shy Betty pushed their small bodies and hit the door
After 10 minutes, they successfully broke open the rusty door when Kevin put his body to it's limits and hit the door.
Coming out of the room, the five kids ran out and searched for Felix and the intruders.
They could not find any trace of him on the fourth floor, so they went doinstairs to the third floor then the second floor where they saw him lying on the ground unconscious.
"FELIX!!"
Noah couldn't stop himself from crying when he saw that his new friend was injured with blood on his body.
The rest too had expressions of grief but when they looked at the grotesque way the man was killed, they were shocked and started vomiting at the scene.
Noah turned back to see the corpse finally and his face paled but he tried to hold it in.
He had already checked that Felix was alive with his heart beating but he was severely injured on his head and stomach. Now they had to quickly bring back Felix to the guild before it was too late and more enemies appeared.
"Kevin, come here quick and carry Felix. We can't stay at this place anymore."
He called out to Kevin with a red face still overwhelmed with all that was happening but he knew staying at the factory any longer was not a good idea.
Kevin carried Felix on his back and the kids did not waste any more time, hurriedly moving out of the abandoned factory and going back to the guild building.
They ran away under the strange gazes of the public who only thought that a bunch of kids were running in panic without having the slightest inkling of what kind of hell they had just been through.