Authors Note: This chapter took a bit longer to complete, because of stuff happening IRL and this being placed on the back burner. Here is the final chapter and hope you all enjoy it. I tried to self edit this with help from people I know, just because living with High functioning Autism borderline Aspergers means that while it makes sense to me. It doesn't necessarily make sense to everyone else.
*****
While Sam slept that night after talking to Rhian, the alien went to work changing Sam. The alien never revealed itself to be a destroyer of worlds. It tried to do things the civil way or as civil as an alien who has burnt worlds single handed. The alien tried to get Rhona to take over the fight, under estimating Sam when the alien saw what Sam was doing with the messages to all that he held near and dear, it decided, Rhona had outlasted her usefulness.
Seeing her as nothing but expandable, a tool that had fulfilled its use. With her gone the alien tried to rewrite Sam's mind, however, because Sam had the mind palace in place the alien couldn't get near Sam's memories. Instead the alien chose to lock Sam within his own mind palace while the alien got to work ruining Sam's life while in control of the body. In the hope that Sam could be broken starting with his family.
The alien chose to start off with Sam's nan which the alien teleported Sam's body to where his nan lived, while becoming a dark mist where Sam's body disappeared into the mist and went inside his dog Monty. In control of Monty, the alien did contemplate making his dog kill his nan but there was a more horrific way to do that. As Sam's nan had Lymphadema in her legs the alien made the legs swell suddenly to 20 times the size of her legs breaking the bones as Sam's nan cried out in pain the legs exploded showering the room with bits of bone and legs the noise of the legs bursting rang out through the street and it snapped Sam from his prison in the mind palace.
Sam Could feel inside the mind palace the blood that soaked Monty's fur and began banging and pleading to the alien to reverse what it had done. But the alien only laughed and decided to punish Sam for the mild inconvenience of making noise by stopping Monty's heart and causing his beloved pet to die next to his nan.
The alien then set sights on his mum and step dad, keeping the perception filter up the alien teleported Sam's step dad back to his abusive ex, but with a difference he was tied, gagged and handcuffed to the wall. The Alien then turned its attention to Sam's mum by changing her mind making it so that she had the unsustainable lust and need to fuck anything that walked. Turning her into a slut from what she was. The real Sam could see this from inside his mind palace. With Sam awake knowing that he had to get out of his prison, he let the amount of concentration go and channelling his hidden darkness, this created immense power for Sam. The power allowed Sam to use the move instant transmission to get out of the prison, avoiding the alien's mind and regain control of his body.
Sam reversed what the alien did putting everything back as they were, to just before the alien took over. Using his powers which he figured out he had because when the alien fused with Sam, he transferred the power to Sam in order to remain dormant inside Sam. Sam locked off his family and friends from the alien creating a protective barrier around them. Sam then teleported himself back to the room in Cardiff that he had. With Sam now in control of his body all that remained was a searing hot pain in his head as the alien was angry and pulling Sam back inside the mind palace. Sam closed his eyes and entered his mind palace where the alien was waiting for him.
Inside Sam's mind palace
Sam was standing near the looking glass, when the aliens' voice rang out.
"So you thought you could use Anime to beat me?" the voice bellowed sounding like a mixture of different people, young, old, male and female all talking at once.
"No just to get your attention, though it was a safe bet considering that you cannot access that part of my brain along with the superheroes, characters from videogames, horror icons... basically everything I used against Rhona and even the TV programmes that I watch. As you think that they don't matter. Your right they don't matter to you but they do to me. So right now you are trapped in here, with me and you couldn't even touch me if you wanted because I have figured it all out!" Sam replied stating the obvious but also with a level of confidence that couldn't be matched.
"Figured what out scum?"
"That you need me alive in order to maintain an anchor to this world. That is why you trapped me in here so you could stay here on this planet. No better than that! this version of earth. That is right I can see your whole being. You are not an alien from another world but a criminal from another Earth. One more thing you didn't do a very good job of sealing the mental link".
"SHUT UP! You worthless sack of shit."
"As I was saying before you rudely interrupted, you didn't do a very good job, as I could see you running away from justice on a different world. Thinking that you were safe hiding in me! Sadly you are not as I have used that knowledge to send a message to the breachers, peacekeepers throughout the multiverse."
"Pity you won't survive to see them!"
"Oh you think you can beat me you're more delusional than I thought." Sam declared showing his confidence with a little bit of cockiness.
"Just a realist, I have brought several versions of earth to its knees. Before the 'breachers' you called even got a whiff of me. Stripped several breachers of their powers and destroyed them. FROM WITHIN." The alien said sounding triumphant as the words spat.
"That is impressive, I must admit well before you killed them that is. Though you may be big shit elsewhere in the multiverse but inside me you are JUST. SO. SMALL!"
While Sam was saying that the alien was making a new body one of a big beast with horns and a mace that. Body of a orc (the big ones from lord of the rings) and muscly legs to match, with the matching jet black eyes that people consider to be demonic. Now that Sam was finished saying what he was, Sam noticed that to the alien had taken the form of the behemoth standing before him, as the alien reached out to grab Sam something stopped the alien in his tracks inches away from Sam.
"What is this force stopping me?" The alien demanded.
"What did you base that look on? Oh yeah an orc from lord of the rings but why the horns and the massive jet black eyes?" Sam enquired hoping the alien would get it.
"Well there are certain texts on some of the earths that states beings called demons had them."
"You really are clueless aren't you, for an alien who has spent years on this planet where for entertainment value there is a thing called television."
"Who the fuck are you calling clueless, I am going to enjoy destroying you!" The alien spat.
"You might want to look up, seeing as you know the lore around the beings. I have the knowledge of the lore that is used on supernatural which even took the notions of a demon found in lore." Sam replied indicating upwards with his left middle finger. As the alien looked up following the finger only to see a devil's trap illuminate above the alien in demon form!
"You see I may not be as smart enough to deceive people like you but right here and right now. You are in my reality bitch!"
After Sam said that the alien shift its form to resemble a humanoid but it was vibrating as there was blue lightening that was going from the toes to the head. The alien had taken the form of a human with speed powers.
As the alien sped round the big space that the devils trap was covering it hurled a lightning bolt upwards breaking one line on the trap rendering it useless. As the alien sped out of the now broken circle towards Sam, who dodged out of the way using the speed force, as yellow lightning surged through his body and appeared in his eyes, similar to Barry Allen in the flash. This meant that they were both now moving roughly the same speed in a chase around the mind palace.
The two beings began their race of dominance. After several minutes of the chase of yellow and blue blurs chasing each other until Sam went down a certain corridor of the mind palace that seemed to end with a dead end with no doors just a rusty hook on a lamp post!
Sam stopped but he was facing the corridor he just ran down. Further down the corridor were two open doors the rooms cloaked in darkness barring the odd lightning surges as one room contained the flash, kid flash, Jay Garrick and Jesse quick all ready for the alien to come. The other door containing Eobard Thawne, Malcolm Meryl, Damien Dark and the black flash, the alien approached and came to a stop past the two doors and standing in front of Sam.
"Ha seems like you don't know your mind palace well enough to out run me." The alien mocked revelling in the joy of catching Sam, not noticing that it was a trap.
"Who said I was running to get away, just running enough to give you a little surprise." Sam said, signalling to the others to go. Out of both doors came a arrow launched by Malcolm Meryl, which the alien caught without turning around keeping its focus on Sam. Damien Dark launched a throwing knife at the alien, again which he caught in his other hand.
"Really, a cheap trick involving a archer and a knife thrower?"