So I recently fell down the Captain Marvel rabbithole and I love your Black Dadam tag because honestly, Ressurected Magical Murder Obama going out to destroy his replacement only to end up dad-ing is my new fave trope. I wish I could see that conversation where Adam basically informs Billy that he's his new Dad because clearly this child has no preservation instincts.
Black Adam would probably explain his reasoning behind the decision before telling Billy hey, you’re the next in line to the throne of kandhaq now, no take backsies, because that’s kind of a huge bomb to drop on someone and he wants Billy to understand that this wasn’t just some spur of the moment decision, this is something he’s thought long and hard over
This is not the overly complicated plot of a villain to dispose of an enemy; this is Black Adam extending an olive branch.
Billy would almost certainly disbelieve him at first. Like okay Billy is a good child who sees the best in everything and everyone, but he is also a homeless neglected child who has had the shit beaten out of him by Black Adam and also beaten the shit out of Black Adam in return. He’s probably very familiar with offers that seem to good to be true, and considering this is an offer which will make them allies instead of enemies as well as solve his food and shelter problem forever, Billy certainly has a right to be disbelieving.
The more he thinks about it, the more it kind of makes sense. Billy knows why Black Adam turned to villainy—he knows about the happy family that once was, and he knows all too well what that must’ve been like to lose it. He knows the throne of Kandhaq only has a King to sit on it, no Queen, no Prince or Princess, no anything in case something happens (and lets be real, something is always happening to kill people off in comics) and the country must be without its King for a while. As much as Black Adam holds himself as a god and looks down on everyone else, who else would he trust to look after his people than someone he know is just as invulnerable?
Billy asks for a day or two to think things over (at which point black Adama scoffs because this is not something he’s going to allow Billy to say no to, but still allows anyways because this child is stubborn) and goes to talk things over with the Marvel Fam.
Eventually he agrees to Black Adam’s proposition (which prompts more scoffs) on one condition:
He’s not gonna be separated from Mary and Freddy. They’ve got the magic, they have just as much of a claim to the throne as he does. If he goes to Kandhaq to be a prince, they’re coming with him to be princes and princesses too.