Herschell Gordon Lewis's third novel?

A friend of mine here in Finland is going to interview the notorious horror/camp director Herschell Gordon Lewis. I mentioned to him that Lewis also wrote novelizations of some of his films and that there were reprints of two of them, Two Thousand Maniacs and Blood Feast. Both came originally from Novel Books in 1963 and 1964, retrospectively, and the reprints came from Fantaco in the late eighties (the cover of the other one on the left).

But I seem to remember there was a third one. I've seen the cover for it somwhere in the web, but can't find it again anywhere. The copies of the original editions seem to be very rare (none in Abebooks at least), but I'm sure there was a third one. Now, can anyone confirm this and tell me what the title of the third HGL novelization was? For some reason I seem to remember it was Monster A-Go-Go, but my friend tells me Lewis has discredited the film so that there wouldn't be much point in him having written a novelization of it. The Wikipedia article on Lewis doesn't mention any of the novels.

Why am I interested in this? I asked my friend to ask Lewis if he would allow doing translations of his novels in Finnish!

EDIT: another friend of mine located the book. It's Color Me Blood Red (Novel Books 1964); see the cover on the left. It's mentioned in this thread of horror movie novelizations and tie-ins. The photo of the book isn't very good, I'm sorry to say.