Go to the DC Universe.

You open your eyes and see a white void. You are flying through it, moving further and further away from your home universe. In this void are black dots. Each dot is a different universe. You look behind you. You see Carmilla Black, Monica Rappaccini, The Wasp, Nick Fury, Maria Hill, Black Widow, Hawkeye and Mockingbird. You look to your left. You see you. Well, a different you. 1 who has a king motif rather then a snake. Behind him is another Carmilla Black and a She-Venom. Is that Barbra or someone else? You look further behind him. His universe is right next to yours. Could he be from a universe where the only difference is that you chose to side with Venom instead of SHEILD? There's no SHEILD agents with him so that must be the case.

A few moments later the whole multiverse shakes. When the shaking stops, you can no longer see the other you or his companions. You look forwards and see 2 universes coliding into 1 another. Nick looks at you. "What the hell is going on?" You look at your hand. "I think my King in Black energy I got from being so emerced in the symbiote hive mind fused with that consmic energy I got from the AIM machine. It sent us to the space between universes."

Fury nods. "Can you send us back?" You shake your head. "We'll die from starvation long before I can take us back with the amount of power I have. Maybe someone from this universe can help us?" Nick looks at the universe you are talking about. "The 1 that is currently getting slamed by another universe as we speak?" You sigh. "If you have any better options I'm all ears." He nods. "Land us down somewhere relatively safe."

You target this universes earth. You look for the greatest mind on the planet to not only help you get home but maybe help save Barbra. His name is Lex Luthor. You look into his background. Never mind. You look for somebody who isn't going to emidietly screw you over. You find another super genius.

Batman.

It's hard to find his exact location do to all the chaos but you can at least find the Batcave. You open a portal and fly in. There you see Alfred cleaning the Batcomputer. "It's rude to enter someone else's house without knocking." You run over to him. "Sorry, we're desperate. When Batman gets back, please ask him if he can help us get back to our home universe. Oh, also." You hand Alfred the vile containing your girlfriends blood. "Please give this to him. My girlfriend is currently melting and the only thing keeping her together is an alien slime. If he can fix her I'd really apreate it."

The poor man sighs, not even mildly shocked at what you said do to all the stuff hes helped Batman with. "Very well sir." You carry the unconscious Monica as all of you besides Alfred run out the tunnel the Batmobile normally drives out of. There you see absolute chaos. It looks like the world is ending and crimals are taking advantage of the chaos to break any laws they want with no reprocussions.

Nick Fury speaks up. "Our universe or not, its SHEILD's responsibility to protect people. Lets get to work." You all do a crime fighting spree as you contain any serious criminals you find and hand them to the police. When Monica wakes up, you're stuck on babysitting duty not only making sure she doesn't escape but also to make sure Carmilla doesn't kill her.