Thought I'd try some human figures again, but hard ones. From Plastic Man #2, https://comicbookplus.com/?dlid=14653 page 36, the story ``The Lava Man''. Fargo Freddie learns that his fall into a volcano has caused a strange and mysterious transformation to overcome him, and gets some advice from a man who went through the same change 500 years earlier.

If you want to read the story, the thing begins on page 30 at the URL mentioned there. The volcano is set in Mexico as written by a white guy (Jack Cole) in 1944, but almost none of the action is. Pop's laid-back casual attitude might be playing on a racist stereotype but it may also reflect that if you've lived 500 years without any physical wants and look to live an eternity more you do stop worrying about, really, anything.

Original art by Jack Cole.