So someone does the thing where they get a kid to summon for the adult because “Alcor likes kids, right?” and Alcor arrives in his usual theatrics of smoke and fire, but he stops abruptly upon seeing his summoner, and he’s not thrown off just because it’s a kid. The child is small, weak, has blond hair and blue eyes, and there’s a bruise around his eye that’s covered in makeup to try and hide it…
His soul is not someone Dipper has ever met before, it’s not a reincarnation of anyone he knows. And rationally he knows this, but this is a kid who looks exactly like Toby and it’s only been a short time or maybe a few years, but Dipper was only just starting to get over his death, and he can’t help but see his son this was how he looked when Dipper first found him and–
The father is responsible for this, is the reason the child is summoning him, is the reason for the bruises…
Dipper is a demon and he’s a better father than this kid’s dad. "I would never hurt my son like this, how could you?“
The boy’s father doesn’t last very long.
Alcor takes the kid somewhere safe, of course he does, what else would he do? But still it’s too soon and Toby’s death is still a fresh wound and that night he holds Maddie close because he knows, he knows that if Maddie hadn’t been abandoned, if she had been kept by her cruel birth parents, she would have ended up just like that boy. Hurt and spiritless and alone in the end anyway…
Not his children, never his children.
When things calm down, a day a month a year later, Maddie finds an internet forum about Alcor’s Son–it’s not Gliese transformed, it’s not Mizar reincarnated, it’s not some form of the Woodsman reborn… but when once thought Alcor only had daughters, now there’s a son and they say Alcor is protective of him… and Maddie shows Dipper, because even if he didn’t mean to, his love for Toby is now immortalized just as the others are, and Toby has now become a figure in Alcor’s legends. While he’s a little happy at that, it still hurts, and Dipper doesn’t to hide it because he knows and Maddie knows it hurts because Toby mattered to him. So let the world know that and let him live forever in those legends–because Toby was his son, and he died too soon.