It had been a long time since Amity Park had ceased to exist, the bustling Midwestern town being deserted in favor of newer, better-organized towns. Of course there were some houses and old people, but it was not what it had been in the past.
The portal had long since closed, the Fenton's structure as a museum to eccentric inventors of the past, but most importantly, in the town cemetery there was a well-tended grave surrendered by flowers and a carved stone ghost. This grave was engraved as "Daniel James Fenton beloved son, friend and brother, protector even in death", right in front of that grave, as if they shared the same space, there was another one that said "Phantom, long lost hero, give yourself a rest kiddo"
This would not have been important in any other situation, but it was relevant when Darkseid changed his trajectory, landed in the old town and began his attack immediately.
Although evacuating the civilians was somewhat difficult, no one expected the battle to turn around when Darkseid stopped at the Amity Park Cemetery, destroying the tombstone of "Daniel James Fenton" and "Phantom", at the same time, Darkseid couldn't care less about disrespecting the death; at that very moment the tomb began to glow a radioactive green and an angry ghost raised from his interrupted rest to destroy the threat that dared to set foot on his resting places.