"This little batch is all painted by Frank Haseler ... these are all from a  story called "Paula" - great eh?" wrote David Roach when he sent these scans.
I had to agree. I told David that Haseler's work reminded me a lot of those fantastic covers you can find on old issues of Creepy and Eerie magazines from around the same period.
"The old 70's Warren covers were almost exclusively by Spaniards," David wrote back, "Sanjulian, Enrich and Penalva and yes I can see this chap painting some mind blowing stuff."
Haseler's style really is a departure from the earlier work we've seen this week, isn't it? Perhaps his influences were more European than American...
I final thought from David: "I think Haseler would have fitted in perfectly at Warren - typically for a 60's/70's illustrator he has that fantastically gritty/scribbly/painterly look that so many of them did. Who was he though? What else did he do - it's a puzzle."
All of these images have been added to my British Illustrators Flickr set.