Intro

Deep within an invisible plain of existence, that resides within the bowels of the universe, one mad titan screams in pain. Every day, ravenous creatures roam to feed off him, shredding his now decrepit armor even more. At the end of each day he looks down at the putrid, molten ground with his black, void-like eyes, wishing for the sweet release of death. However, his fate was decreed, what feels like so long ago, by the one who wielded the power he once did.

This particular day he is graced by the presence of a dark lord, a dark lord whose astral body is vivid red, with a cape that looks to be a part of him. Thanos looks at him, the vile lord, trying to hold his head up by his own strength, which quickly shatters, fighting against his own efforts, but he continues. "Mephisto…" he mutters to the dark lord.

"I would have waited an eternity to claim you Thanos, but instead you were gifted to me. I have enjoyed this past earthly month, but already you are at wits ends, and many souls have been here for millions of earth years...I expected better." Mephisto mocks, his voice heard all around, within the ground and throughout the orange, fiery sky.

"Why tourture me mephisto?" Thanos asks with sullen breath.

"Because I like it. Long you have reigned above mere mortals as the mightest, and the most ruthless tyrant in the universe. And now I, Mephisto, will break you!" he laughs. Thanos has a spark of inspiration at that moment, a spark he will capitalize on.

"You like bragging rights? I can get you something that will give you all the bragging rights you deserve, if you let me out of here." Thanos says with a repressed smirk.

"And what is that titan?" Mephisto questions, leaning in closer.

"A cosmic cube." Thanos utters.

"What would I need from a cosmic cube?" Mephisto questions this spontaneous plan, ever suspicious.

"You know exactly what you can get, access to the physical world, and the ability to corrupt all good souls that have ever, or will ever, exist." Thanos explains. Mephisto ponders quickly. "You know I'll get it, and I'll give it to you." Thanos nudges.

"A universe all my own...and countless lifeforms to be twisted to my will alone…" Mephisto pauses, looking at Thanos with his vortex-like eyes, Thanos staring onwards, unflinching.

"You have a deal…"

Chapter 1

Mechanical whirring is heard, followed by a giant platform being raised, green with white lines methodically placed and a net in the middle. Giant machinations, one on each end of the platform, stand ready for action. "And it's a go!" A voice is heard over a loudspeaker. A big ball launches up from beneath the platform through an opening, it flies up in front of one of the robots, which hits it with a racket, launching it to the other one, which has a black and grey line pattern, with the other robot having pink and white lines.

The ball strikes back and forth, each hit increasing in intensity, the rackets vibrating more and more with each hit. The black and grey lined robot strikes the ball, the pink and white lined one retaliates with a strike that has so much speed that the ball flies past the black and grey one. The ball immediately suspends itself in mid air, and is dragged back through the hole in the elevated tennis court.

"And the winner is, Isabella!" Phineas adds over the speaker.

"But that's not all for today folks, because up next is, Baljeet, vs...Ginger!" The robots' lines pulsate, changing colors. Ginger's side an orange and brown color, Baljeet's is deep blue and light blue. The match begins much the same, the crowd on high up bleachers cheering with a vibrant energy. The ball goes back and forth, just as Baljeet hits it, sending it towards Ginger, the whole platform, including the ball, bleachers, robots and rackets, disappear.

Everyone crashes down on the even, luscious green grass of Phineas's backyard. They all look around as the crowd gets up and leaves with smiles plastered on their faces. Phineas and co, sitting on the ground with their legs stretched in front of them, look at each other and unanimously giggle. They finish just as Phineas's sister, Candace, bursts through the gate with her mom in tow.

"Oh hey kids. Having fun?" Phineas's mom asks. They all say 'yes' at once with smiles on their faces. "Anyone want some pie?" She asks. They all decide together that they like that idea very much. "That was amazing Phineas!" Isabella exclaims.

"It really was, wasn't it?" Phineas says. Isabella smirking, she turns to Buford. "Sorry you lost." She says in an ever-sweet manner. "Eh, I'm better at squashing things anyway." he says as he slams his fist into his palm. Isabella's eyes widen, "Okay then…" she says, walking closer to Phineas.

"Don't worry Baljeet, I'm sure you would have won if it lasted a little longer." Ginger says.

"Oh I'm not very good at tennis, besides, you probably have a few dozen patches related to tennis." Baljeet says.

"Well actually…" Ginger begins to say, when she looks down at the ground. "There you are Perry." she says, Perry wanders up by Phineas, and his brother, Ferb.

"It could have been worse, we could have all fallen into a pit of lava with no chance of escape." Ferb states in his usual monotone way. They all sit and enjoy some pie, laughs are shared and amusing tidbits from the day are recounted. Everybody goes home as night falls. Phineas is tucked snuggly in his bed, his mind drifts off eventually. Perry sleeping on the bed with him, his brother sleeping in the parallel bed.

A muffled noise is heard, Perry's eyes open, he looks at his watch, it reading 'security breach', Perry puts on his dark brown fedora, standing straight up as he does so, and sneaks out of the room. He makes his way through the kitchen and into the backyard. He heads over to the tree, pressing a button to open up the panel, descending in the elevator.

He looks around the brightly lit, steel interior, his chair and the massive monitor. Seeing nothing unusual, he rubs his beak as he turns back around leaving. He gets outside to the calming night, only to get another breach warning, he runs quickly back to the elevator. Down again, only to see nothing, unusual. Perry huffs in frustration, throwing his watch on the ground and heading back up to get some sleep.

Day comes, Phineas, Ferb, and Perry wake up, the sun is as bright as ever. They eat their breakfast downstairs and head out to the backyard, sitting under the large tree leaves, leaning back against the tree's massive trunk, brainstorming.

"Ferb, I know what we're going to do today!" Phineas says with rampant enthusiasm. "We're going to make a giant catapult that will launch a person all the way across Danville!" They then set to work, but only after noticing Perry has disappeared. They build the frame of the catapult as Isabella walks in. "Watcha doin?" She asks in a coy manner.
"Only building a catapult that is sure to give you, or anyone else for that matter, the best view of Danville!" Phineas exclaims.

"Cool! What can I do to help?" Isabella asks.

"We're going to need more volunteers." Phineas requests.
"On it!" Isabella exclaims. Buford and Baljeet enter the backyard. Isabella soon returns with the rest of her Fireside Girls crew. "Found some volunteers for you Phineas!" She enthusiastically says.

"Great! We're just about finished here...and there!" Phineas says. "We're ready to go!"

Down below, unknown to them, the steel floors of Perry's lair shake, like they are beckoning to a higher presence. A rumbling sound of deafening proportion follows a portal of sorts, tearing open. Bone, muscle, tendon, flesh and even armor, they form into a hand that reaches through, then a foot, then, stepping through as a tear-like portal closes, is Thanos. He closes his eyes, breathing in deep, feeling the air around him. He breathes in literal, near-unimaginable sweetness, then a split-second later, he presses out all the air in his lungs to yell at a volume that fills the entire room. Joy has never been felt like this before. After some time, he collects himself, and seeing the elevator nearby, he walks towards it.

Phineas and crew cock the catapult, when a sound draws their attention. The tree opens up in the front, crouched down, Thanos gets out. They are all in awe. Thanos stands up, looking at the sun, he lets out a chuckle, then, a genuine smile. "Woah do you live down there?" Phineas asks, Thanos snaps a look that floods back so many memories, causing him to fly into a furious yell, backhanding the tree, obliterating part of it. Charging after Phineas when a portal opens up in their backyard.

Out flies a person in a grey suit with pink accents, firing blue energy blasts at Thanos, staggering him momentarily. He turns with a vicious glare, wrapping one hand around their entire body, and throwing them through the fence. Another person charges out with a shout from the portal, with pistons in place of hands on a grey and black suit. throwing a titanic punch, only to be effortlessly dodged and dropped to the ground by a hook from Thanos.

Another shows up with an energized mace on a chain, Thanos pestered, grabs the mace and throws the person out of the yard with a growl. Thanos's attention is drawn to the portal as a black and yellow colored, armored suit comes out, slightly taller than Thanos. It grabs Thanos and blasts him to the ground, continuing the bombardment, including subsequent blasts and punches.

"This is so cool." Phineas says, the person in the suit looks at him, long enough for Thanos to punch as hard as he can, the suit cracks in the middle, then suddenly it splits into two different, smaller versions and the cracks disappear. One attempts to go for a leg, only to get kicked through the tree, causing it to collapse in the backyard. The one directly facing Thanos is grabbed, with a furious yell Thanos grips into the suit, and pulls, making the person inside scream in pain, their suit rips apart, pieces fly everywhere, as the person falls helplessly to the ground.

Phineas realizes the danger, he jumps in front of the catapult in a spontaneous decision. "Hey, you want me? Over here!" Phineas waves down Thanos, who glares with bitter anger before charging with a mad fury. Phineas ducks out of the way at the last second, the catapult is released by Ferb and Isabella, catching and throwing Thanos far away. Another enters from the portal as it closes, weilding a bo staff "Where is he?" The person in the suit asks. Phineas looks down at the one who's suit got ripped apart, he doesn't believe his eyes as the person throws their familiar helmet off. It's him...but older!

The others fly in, next to the older Phineas. The one with pink and grey accents lands right next to him. The rest scattering around him. They look at the younger Phineas, and the rest of the crew. Their helmets fold back, revealing the older selves of everyone, including Candace, wielding a bo staff. They all give each other surprised and confused looks. "Well this doesn't make any sense…" Older Phineas speaks while looking at his younger self. He takes a look at everyone else. "You're all supposed to be dead…" A gulp of confusion is shared amongst them all.