Optimus could see them, hear them, feel them within his spark. He didn't know what they were, or why they clung to him, of all mechs. He wasn't even sure they were really there. But, to him, they were real. It was too bad the others couldn't share this pleasure, but to them there was nothing there. Only he could see them; these visitors, these visions, these ghosts.

It was a nice enough party, Alphys guessed. Three years on the surface was nothing to sneeze at, even if she's seen it all before. Being one of only two monsters to remember the resets did tend to make everything a bit duller like that. Wait, when did she set this alarm? Oh..OH! Time to resume a conversation with a certain someone...

With Monsters free of the underground, setting up businesses, and schools, navigating politics, rights being established, history rewritten, world views shattered, was it unsurprising then that it wasn't until after that anyone noticed anything off? "Join not the fay in revel, mind/Nor whirl around the elven track/for when in leaving ye shall find/Time dances not so merry back"