I've seen the concept of Kon either having a third parent in his DNA or instead of Lex Luthor it was someone else, so what if we replaced Lex's DNA with Danny's?
Danny's been the Ghost King for hundreds of years now his family has long since passed, Dan isn't around anymore since he's been helping Clockwork with Timeline screwups (something to do with flashes? He wasn't really paying attention) and well Dani's off exploring and discovering places, I mean she comes back occasionally but not as often as Danny would like, so Danny decided why not visit a human realm, and so he does, he explores the cities and stars, he doesn't really hide he's not human looking with his pointed ears, long fangs, and glowing eyes, and while he was there some lucky bastard got some of his DNA. This person also just so happens to be the person to switch Lex's DNA with a much stronger candidate (aka Danny)
Danny hadn't noticed at the moment cause it was a busy train ride, but he did immediately notice when a new life came to be, immediately claiming him as one of the parents, so of course he immediately went to go look and see what that was about cause he doesn't remember sleeping with someone? And he hasn't even been here that long for a baby to be born? And after some searcing he finds a lab and a baby in the tube and we'll, he went completely feral at the sight and destroyed the building, which caught some of the Justice League's attention and all they find is a destroyed building owned by Cadmus.
Danny is now back in the apartment he was renting while he was taking a vacation from being the Ghost King (he was lonely), with his brand new baby he'd guess around 3 months old but he's not an expert, and he just falls in love with him the same way he did with Dani but the thing is the baby isn't a Halfa like him even with his DNA he's more like Jazz with being extremely liminal (so mostly all the instincts of a ghost but none of the powers), and we'll Jazz couldn't ever really stay long in the zone before she'd end up a permanent resident, so taking this baby with him back to the zone was a no go, at least not for long periods of time.
So that's where he's been for the last two months with his baby who he named Conner Nightingale, Nightingale after his fake ID for this human life, and he's just adoring being a father and sure he wonders sometimes who the other parent is but he can't exactly take Conner to a normal hospital, cause of the ghost biology, except the few checkups with Frostbite telling him the other parent isn't human, Dani was also told about her new nephew and loves bringing him new toys to see if he'll like it whenever she comes around.
While Danny has been taking care of Conner the Justice League has been trying to figure out what happened with that Cadmus building was doing before it got destroyed, and found out it was a cloning lab, who they were trying to clone they haven't found yet cause of the scattered/destroyed files...
Edit: Part 2
