DISCLAIMER: I do not own Lilo & Stitch in any way. I only own Experiment 000. VOID99 owns Experiment 555. You can use Experiment 000 in your stories but you must ask me for permission first.

This chapter will be written in third person.

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CHAPTER SIXTEEN: DARKNESS! THE DEMON WITHIN

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000, now possessed by Jumba's most ruthless experiment, stands on top of the house's roof with his arms crossed. The symbol on his chest burns brightly with every move done, a malicious chuckle broke silence shrouding the possessed experiment.

"So many possibilities…"

000's voice and another said combined.

He closed his eyes and the spirit possessing 000 began scanning the body it's possessing. After a minute, his eyes open with a grin.

"So many abilities sleeping…"

He said with a grin.

"You have been missing out my friend."

Possessed 000 raises his arms into the air, then his body is engulfed in the mysterious purple aurora, awakening sleeping abilities. He slightly closes his eyes, lowers his arms down to his chest and tightens his knuckles' grip, then lowers his head and looks at his paws.

"Soon my friends…"

He looks down at the beach.

"Everything will be over…"

He jumped down from the roof and hid behind the house's shadow, stalking an experiment who's taking a nap under a palm tree. The experiment was 520, one of 000's first experiment to make friends with.

"Friends…"

He whispered to himself.

"First to go."

Possessed 000 looked at his paws, thinking about 000's abilities he hasn't discovered yet.

"With my mind and 000's powers…"

The purple aurora appeared again, making him stronger. The left paw began to change shape, it changed to a pole like shape, extending a feet long. The tip morphs a sharp end, going down to his wrist, getting wider. The change finished, a silver sword now rest on 000's wrist, no longer a paw.

"Arm shape-shift…"

He grinned.

"Impressive…You're better than I thought."

He swung his sword-arm a few times, he looked at how his reflection is seen on his sword-arm's shine, he grinned. Soon the sword will be stained by other's blood.

He looked at 520, who just woke up and walking toward 000's location. The possessed 000 grinned, charged to 520, thrusting his sword-arm on 520's belly; piercing his stomach…520 didn't had a chance to react.

The sword-arm still remains in 520's stomach, small bleeding, the sword-arm kept the blood in. 000 stood there, his face looking over 520's shoulder. 520 couldn't even talk; he stood there, suffering the pain of having a sword thrusted in his stomach. Blood started to come out of 520's mouth; he never thought his end would be like this.

"520…"

000's real voice whispered in 520's ear. Then, he grinned.

"You just been killed by not only a friend…but of a legend."

000's voice and another whispered.

The sword-arm slowly was retracted from 520's stomach, with an insane pain resulting of it. The sword-arm was retracted, allowing blood to leak out of the wound. 520 coughed out blood one last time as he fell to the floor, his body fell to the floor, breathed one last time before sleeping an endless dream.

"Overkill…as always."

000 said.

He looked at his left arm, where his paw was shape-shifted to a sword. 520's blood trailed down the steel blade. The possessed 000 grinned as the blood reached his flesh and blood arm.

He swinged his sword-arm aside, throwing the blood off. He looked at his reflection on the sword-arm. The slash done on 000's left eye healed, but it left a noticeable scar. The wounds have healed too, but not left behind a scar. He frowned a little, but smiled.

"This body needs a little adjustment."

Whoever is possessing 000, it's known he doesn't like a sane body. With his sword-arm, he wounded the body's right arm, blood flooding out of the gash made. With the claws of his right paw, he slashed the body's chest, face, and back. Soon, 000's body is riddled with wounds and blood to reflect the possessor's personality.

"Much better."

He thought of his next victim, the pain his source of power to think. He opened his eyes with a grin, he figured out his next victim. He chuckled, and entered the house, leaving behind tracks of blood, and the body of 520 behind.

= = = = = =

Somewhere deep within Jumba's underground lab, 555, his back resting against the wall, arms crossed, head bowed down and eyes closed, taking it easy and in deep thought.

He opened his eyes.

"552…could it be that he's back?"

He stood straight, gripping his knuckles.

"But…but how?"

Thos words haunted his mind; he's been through what 552 could do, he never wanted him to return, his nightmare has return to haunt him.

"Damn!"

He cried as he punched the wall behind him.

There was nothing 555 could do, except to go to 621 and demand an explanation, but doing that would be insane, but it's his style to take chances like this, he would love a challenge here and now.

"Hm?"

555 felt something burning on his body.

"Could it be?"

He looked at the palm of his right hand, it was red, and a bright red light began to shine. 555 hold his right hand as he grunted in pain. He dropped to his knees, the burning pain was irresistible.

Finally, after what felt like forever for 555, the burning pain stopped, small smoke rose from the palm of his right hand. He looked at it, he couldn't believe his eyes, it was deja-vu all over again.

= = = = = =

619, lying on the floor, his back practically digged in a wall, breathing rashly and badly, also bleeding badly. In front of him stands a possessed 000, the symbol on his chest burning brightly, his eyes showing no emotions whatsoever. His body, bleeding badly from the gashes and wounds the demon possessing him as done.

"000…"

619 managed to say.

"Why are you doing this?"

From 000's mouth came out a demonic chuckle, then a heavy sigh.

"Pathetic experiments…only worth to torture."

"What are you saying?"

619 asked.

"What happened to the 000 I used to know?"

Another chuckle exited 000's mouth.

"He's…in hell!"

With that, he raised his sword-arm and sent it down on 619's head. Sayonara.

= = = = = =

"The…the mark…"

555 said in shock.

Indeed the mark. The mark which was burnt on 555's hand as returned, burnt itself back to where it was. The same symbol on 000's chest has appeared in 555's hand. A nightmare which was forgotten has reared its ugly head, a nightmare once forgotten…

"He's really back."

555 whispered to himself.

555's fury surfaced. He punched the wall, breaking it through. He hissed in anger as he continued punching the walls surrounding him. The hatred…the anger…how much it hurts to him. A memory forgotten as been remembered, 555 was sick of this haunt, how much he wanted to be free of it.

"No…not this again…"

Death…only death could free him from this pain. Only death could disconnect his mind from that diabolic experiment once known as…552.

555 wanted to end it all, but how can he kill a spirit who possesses other people's body to carry out his deed.

Nothing would work; the spirit would move on and let the body die. 555 couldn't do anything to escape; only death could work.

At first, the idea of dying to be released from this nightmare sounded the only remedy for 555. But then, thinking about his friends and everything he cares about made it sound bad.

555 couldn't bare the thought of that psycho of coming back. He wants him dead, but he already is, he can't kill him in another's body, let alone the spirit. There was nothing he could do, he tried to stay calm, but the thought of him being back and maybe killing others by now was too much for him. 555 was on the brink of killing himself…

"Don't do it."

A voice called out from behind 555.

He looked back to see 627, staring at him with a determined look. 555 loosen his knuckle and fell on his hands and knees. He was afraid…afraid of 552 wiping out his friends, family, and himself, and there's no way to stop him, unless destroying every vessel 552 could use, but that was out of the question. He was unstoppable this time, nothing could stop him now. 555 calculated every situation, he could do nothing. He couldn't hold them back anymore, tears started to form in his eyes.

"What…what can we do?!"

555 cried.

"How can we stop him?!"

627 stayed silent. He turned his head to 627, his cheeks glittering with tears.

"You know about this don't you?!"

627 nodded.

"His vessel is…000."

555's eyes widened, he couldn't believe who he's using to carry out his evil deeds. He turned his head away from 627, sucking up the tears he could.

"He's unstoppable now!"

555 cried.

"How can we stop something that it's already dead?!"

627 didn't respond. 555 continued calculating for any possible ways…none whatsoever.

555 felt 627's paw on his shoulder.

"555…I don't know how 552 screwed your life in the past, but I know he's dangerous."

555 calmed down, 627 continued.

"That's why I need your help; you might hold the key to 552's weakness and destruction."

555 got up on his knees, glaring at the ground, trying to dry off his tears without 627 noticing.

"I'll help…"

627 helped 555 up on his feet.

"Let's just hope we're not too late to save 000."

= = = = = =

"624…"

Possessed 000 is looking outside the window of the house, stalking a female pink experiment in the beach. 000's body was still bleeding; most of the body is practically painted in blood, his own and of the other experiments he slaughtered.

"520, 619 and 010, now all that's left is her…"

He saw 624 getting up and headed to the other side of the beach. Possessed 000 jumped out the window and walked slowly to her, shape-shifting his sword-arm back to normal.

"After her, all that's left his 555 and 601. Then, 000's friend list is reduced to cero, allowing me to kill others."

He chuckled as he continued walking.

"How much fun it is to destroy ones life."

624 stopped, feeling as if someone is following her. She turned around and saw 000, standing a few feet away from her. She gasped when she saw him all cut up and bleeding.

"000…what happened?"

624 asked.

000 smiled as he slowly walked to her.

"Just a little injury in training."

000's real voice said.

Something irked her, 000 would never go out with those injuries, he could get killed if the injuries get infected by a bacteria or something.

"Are you feeling alright?"

624 asked.

000 stretched out his left arm.

"Of course, I just wanted to see you, nothing wrong with that right?"

624 couldn't help but blush by that statement. But still, something was wrong, this is not 000's personality at all.

"I don't know what happened but…"

624 said.

"Leave me alone you impostor!"

As much as she hated to fight, she lunged at 000 to attack him, she could bite and run. But 000, using his lightning speed, ran behind her. She turned shocked, 000 placed his arms around her, staining her fur with the blood on his.

"What's wrong?"

000 said.

"Afraid?"

624 had every reason to be scared.

TO BE CONTINUE…

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