Author's note: I apologise for this chapter taking so long to make.

XXXXX

(In the world 187 the year 2890, Flashback of ????'s POV.)

Hiding in a dumpster bin after being wounded with a bullet in the right hip by some common crook with a gun isn't the greatest thing in the world but finding food without being called a freak is more difficult to do when it's out in the open.

I was looking around for lunch while putting my hand on my wound until I heard some squeaking.

I look around to see a rat.

A delicious, juicy rat.

It looks at me with a slight twinge of fear as I try to grab it and got out of the bin.

After a while, I was able to get the rat, dead in my mouth and started eating it, slurping up the rat's tail but as I finished eating, I noticed two pairs of feet.

I looked up to see Bruce Wayne and a kid as I tried to stand up but started limping in pain due to my gun wounds.

Bruce Wayne: "Are you okay?"

Me: "I'm fi-"

I groan in pain as Bruce Wayne and his son help me up as I tried to bite him but missed as Bruce notices.

I sighed, knowing I have a lot to explain for.

Me: "I'm sorry. I... don't have control over my... urges."

They get me inside their home as a person sees my wounds.

???: "I have a medkit inside."

Bruce Wayne helps me to his home and sits me down on a couch as his butler, who's named Alfred bandages up my wounds.

Me: "I couldn't thank you enough for your hospitality."

Alfred: "No thanks are needed, sir..."

Me: "Langstrom. Kirk Langstrom."

XXXXX

(One year later, Bruce Banner's POV.)

As my group and I go through the portal, Phineas and Ferb scan the area.

Natasha: "Ok, we need to be careful. If we find the second dance gem, grab it and then get out of here."

Me: "Alright everyone, let's find that gem."

XXXXX

(No one's POV.)

Mrs Beakley: "Boys, lets-"

Mrs Beakley looks at Huey, Dewey and Louie who were staring at different things.

Huey stared at a Tower as Dewey stares at what looks like a factory and Louie looks at a Mansion on a hill.

(I know not many people like the 2005 version and I do understand why the 1970 one is likeable but I prefer the 2005 one because of it being more faithful to the original Roald Dahl book... apologies to anyone who loved the 1970's version.)

They stopped staring after hearing a burst of maniacal laughter and turned to see a man known as the Joker and an odd-looking man known as the Trickster, running out of a bank.

The Trickster was holding a gun-like weapon with a nose that shoots acid while the Joker was holding a pair of car keys in one hand and a small blue gem in the other.

Milo sees the blue gem in the Joker's hand.

Milo: "Uh guys? I think I've found the gem."

Bruce and Natasha look at where Milo was looking and sees the gem in the Joker's hand as he put it in his pocket.

Black widow: "We need to get that gem."

Dewey: "Dewey's got this, now let's Dewey it!"

Huey: "Dewey, no!"

Dewey doesn't listen to his brother, takes a skateboard and skates towards the Joker and the Trickster to grab the second dance gem but fails when the trickster uses his snot gun on one of the wheels, sending Dewey flying and landing in front of the Joker.

Dewey was about to get up until the Joker sprays a small amount of green gas in Dewey's face, making him laugh uncontrollably.

The Joker & the Trickster gets to the Joker's car and gets in.

As they both drive away with the second dance gem, the group get to Dewey, seeing that he's still laughing.

Bruce: "Are you ok?"

Dewey: "I... can't... stop... laughing!"

Dewey's laughter gets louder.

Louie: "Oh boy."

Mrs Beakley: "What's happening to him?"

???????: "A criminal known as The Joker sprayed him with his joker venom."

Just then, the group except for Dewey who was still laughing turn to see two figures.

The first figure wears a blue cowl with bat ears & a cape attached to it, a grey suit with a bat symbol on his chest with a yellow unusual belt and blue gloves with edges on them.

The other figure has a black bat suit with big, white lines that reaches his shoulders, and goggles with red lenses.

The figure in the blue cloak goes to Dewey, holds down his right arm and injects something in it.

Figure 2: "The antidote should do the trick."

Dewey's laughter starts to slowly stop and when it did, he took a few deep breaths as he starts to stand up.

Dewey: "Thank you."

Both figures look at them with a calm yet confused look.

Black Widow: "Who are you?"

Figure 1: "I'm the Batman, this is Dark Bat."

Dark Bat: "We will be asking you questions and if we find out you were lying, you'll be sent to the GCPD prison."

Huey, Dewey and Louie gulp in worry.

Bruce Banner: "What do you want to know?"

Batman: "Why are you in Gotham?"

Huey: "We came here because we're looking for something that clown and... Trickster stole, a blue gem we need for our world."

Batman: "What do you mean by 'your world'?"

Bruce Banner: "We're not from this universe."

Dark Bat: "Wait... Are you saying that you're from a universe, parallel to our own?"

Mrs Beakley: "Yes."

Batman: "What's important about this 'gem'?"

Black Widow: "This gem is the solution to protect our world from a greater being known as (N/Y)."

Batman and Dark Bat look at each other, with Batman nodding his head to Dark Bat and then turn back at the group.

Batman: "You don't know what the Joker is capable of..."

Dark Bat: "Although, there is a chance that we can help each other."

XXXXX

(In earth 6721, (N/Y)'s POV.)

As we go their earth, we have finally found the war stone at a museum of heroes of the planet.

I use the Death stone to cloak the ship & from all sensors and made us invisible to the naked eye of the people of Earth 6721.

Michael is talking to most of the angels from his world.

Cinder: "Sir, should we come down to help you?"

Me: "No, We... I will go alone. It's... I'm the only one who can control these... things. You'll all stay here and prepare for any attack."

Cinder nods her head before I leave to find the War stone, not telling anyone else.

XXXXX

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