Re: The Gathering Darkness (the Connor series) - Dirk B.
What a great question. I've been told that angels and demons in Catholicism can't reproduce, although some church fathers thought Satan could father the Antichrist. That, of course, was before knowledge of DNA, which I have now bumped up against. I need a Y chromosome. Perhaps the demon should sample a dead human (e.g., in a morgue or cemetery), which would give it the ability to assume that human's form, including its DNA. The problem then comes back to where in the child is the demonic essence and power? Perhaps a half-soul and a half-demon essence? Meh.