If I search an infinite number of quarter boxes an infinite number of times...

...that seems to be how I'm picking these up, yeah: from 1979, Thor #287, "Assault on Olympia!" Written and edited by Roy Thomas, with thanks and concepts by Mark Gruenwald and Ralph Macchio, pencils by Keith Pollard, inks by Chic Stone.

Thor is catching a ride with the Eternals Ikaris, Thena, and Sersi; along with their friends Karkas and Ransak; to the confusingly named Olympia: not Olympus, home of the Greek gods like Zeus and Hercules; but Olympia, defunct brewery home of earth's Eternals like Zuras. In fact, they're in Zuras's personal ship, when they get shot down by a flying saucer--no, that's a stray discus, since today was their Olympics! I don't know how they're going to find a winner in that competition, if they're just randomly launching discuses into the stratosphere, but okay. The sport is ended, however, by the dramatic arrival of--the Forgotten One! Who we have seen multiple times on the blog but doesn't have a tag because I keep forgetting. (Boo!)

Claiming the name "Hero" here, F-O launches into a whole sob story for anyone who might have missed Eternals #13. So, everyone then. He claims Zuras "banished" him to the loneliest dwelling in Olympia, as earth had no more need for heroes; and apparently he stayed there for centuries, until Sprite sent him to stop a Deviant bomb from blowing up the Celestials' ship. (It seems unlikely the Deviants could've done any real damage, but still.) He was caught in the explosion, but rescued by the Celestials, and now sent with a message for his former brethren: don't mess with the "fifty-year judgment," now already in progress. Zuras may not have even been interested in interfering before, but now, hey, the Celestials aren't the boss of him! Predictably, a fight breaks out; but more surprisingly, Hero and Thor are transported aboard the Celestial mothership, to continue their battle before the "One Above All."

Hmm. We saw #291 almost five years back, #290 in 2011; and while I've read this run more than once I don't think I have all of this lengthy Celestial/Fourth Host storyline. I feel like I might eventually get the whole run just by sheer chance, though. I also half-suspect I've got Eternals #13 somewhere too, come to think of it.