There is a baby in his arms. That, this wasn't one of his brightest plans. What does he do with a baby? Besidesgive it magic that is. The power from the girl's soul is only connected to him by a thread. He needs to fulfill at least part of the deal before the connection snaps. So, giving the boy magic, but the second half. How is he going to work that?

Happy. Somewhere the baby will be happy and taken care of. That is not fair. Why did he have to agree to that? Oh yeah, because that is what the girl was offering for her soul. He is thing to have to keep an eye on this kind, mails sure nothing happens that could rescind the deal.

Personal deals have more and less rules that deals with hell. The demon will be responsible for this kid until he has reached adulthood. Clever, clever girl.

He hates the clever ones. They cause so much trouble.

The demon reaches into the well of power, scoping up a handful of pure magic. He contemplates the burning glitter, letting it run a swirl around his fingers. This much will give the boy a spark, just enough to get into and attract trouble with no real way of defending himself. That means more work for the demon. Which is bothersome. He doesn't want to have to stalk the kid. He has better bigger things to do. No, he can check in every couple of months, make sure the brat is happy and healthy. To manage that the kid will need to be able to defend himself from pesky supernatural threats. He pulls a double handful of magic from the well, combining it with what he already extracted and presses it into the child's chest.

Not his best idea. Tonight's just full of those, isn't it.

The magic is unconnected to hell, fueled by the soul of an innocent (although she was obviously not a virgin, that was apparently her only transgression before dealing with demons. Not even petty thievery tarnish her. It is hard to find someone purely innocent these days.) and a desperate mother. It reacts badly with the hellfire and shadow gluing the boy's fragile soul together.

Badly. Understatement. Kind of like calling an elephant small.

The baby starts screaming, shrieking with pain as the comflicting powers wage war inside him. The child's eyes bleed black. His veins light up with white light. The hellfire flares, blinding in its intensity. Then, as fast as it all went wrong, everything settles. The demon is holding a perfectly afterage three-day-old, not the glowing creation of a few minutes ago. As an added bonus, Genim is silent.

Genim. Interesting name for an interesting child.