Robbie went on a suicide mission, not informing you (his beloved partner in crime and in life) or Gabe about it.

He drove the Hell Charger into the rift, got stuck after the God Quarry in the First Firmament, in his spectral form. He’d asked the Avengers to take care of you and Gabe in his absence, but he knew you were stubborn enough to take care of yourself and Gabe all alone.

You never did trust the Avengers, not after everything had blown over, after they tried their hardest to kill Robbie when Eli Morrow took over his body.

You’re a stubborn person, headstrong and hardheaded, but Robbie loves it; loves you.

He’s spent his time in the First Firmament salvaging the Hell Charger, fixing the car up so he can cross back over.

To you and Gabe.

An indescribable, undetermined amount of time later, the Hell Charger crashes through dimensions, fully fixed and probably pissing off Dr. Strange. Robbie swerves the car to the left, coming to a stop, perfectly parallel parked. He takes his human form again, before walking down the street.

He knows where he is. Close to the ground floor apartment you rent. You picked a ground floor one so Gabe could come over easily. The kid loves you, honestly, always pestering you two about when you’re finally getting married.

His estranged uncle’s, Eli Morrow’s, voice echoes through his head, a bitter symphony of hate and malice. ’What if they moved on, huh? Did you ever think about that, Roberto? That your beloved partner found someone new? That your brother moved on, gave up on you?’

Robbie squashes his uncle’s voice, shaking his head. He knows you two would never give up on him.

He approaches your apartment building, snagging a newspaper from a bin. Holy crap. He was in the First Firmament for almost a year.

He fishes for his keys, stepping into the apartment building and nodding at the receptionist. He walks down the cramped hallway, opening the door to your flat.

A half finished jigsaw puzzle takes up the dining table as you cook, Gabe doing his homework quietly.