thought! they have child, no matter if theres fluffy art they grow up, have a kid of they own and so on and so on all the way to eda and lilith, and the way hunter happens is in a bout of mania/feelin not so great episode(hes goin thru itTM), he goes "if only caleb was here, hed know what to do" and only after hunter is incubating people around him have an intervention, he breaks down and gets better but then he realises "ah shit oh fuck, in my bit of mania i accidentally did necromancy" and bada bing bada boom, only like 4 people(pip, lilith(still a part of EC), enzo and uuuhhh eda????? yeah not very set on that, think of a fourth person) know he's a grimwalker, while they tell him he's pip's nephew, cuz telling him "ah yeah i had a mental health episode and made you" aint the best thing to tell someone of hunter's mental fortitude π
now the nuclear and kinda crackhead alternate option that i thought of randomly xdd: their kid IS hunter, and he falls through the time pools while one time on the beach and gets stuck in the modern day xdd