Yeah, if Jack had to go, he at least left us with a lot to remember him by.
In the ART OF JACK KIRBY book, a nice retrospective of his career, it says
Kirby produced over 40,000 pages of comic art during his reign.

And plenty of other unpublished pages that have been unearthed over
the last 20 years !

Here's the Mile-High listing of Kirby's 19-issue ETERNALS series, showing all the
covers, and quite a few interior pages.





[This image from ETERNALS # 1, pages 2 and 3, April 1976.
I have this one enlarged, matted and framed in my home. ]

For some reason the two pages won't display side-by-side in my post here the way it used to. But if you click the "reply" or "quote" buttons below, and then hit the "preview my changes" button and scroll down, my post will display the two images side by side below in the quote-screen.