Thanks everyone!
I had a suspicion earlier this week, but I dismissed it because it was so late in the season. Everyone else has eggs hatching, babies shedding, there's no way my corn would just now be laying eggs, right?? LOL
I woke up this morning to 8 more eggs. A grand total of 30 eggs. Four are definite slugs, one on top in the picture is iffy. It looks good, with a bit of yellowing, so I will incubate it along with the others & we shall see.
Here's the pile of eggs