I recently bought a few vintage V&V adventures published by FGU in the mid-1980s, including "The Pentacle Plot," written by Stefan Jones.

My teenaged collection of V&V materials show that I pretty much stopped buying V&V supplements in 1985, after the first (roughly) dozen V&V supplements had been published.  I remember picking up a copy of "Pentacle Plot" at my local comic book store back then and specifically not buying it in part because I didn't see any indication of involvement by Jack Herman or Jeff Dee, and because I thought, at a a glance, that the artwork (cover/back/interior)  "sucked."

It was totally lost on me at the time that it had been written by Stefan Jones, who had already written two V&V supplements I really liked, "Opponents Unlimited" and "From the Deeps of Space."

Additionally, I would, of course, have had no way of knowing back in 1985 that the artist, Jill Thompson, would go on to have an acclaimed and successful multi-decade career, and that, since the cover art is dated 1984 and wikipedia states that she was born in November 1966, she was likely only 17 when she drew all of that. A high school kid. I would have been 15 when I was holding that published book in my teenaged hands and scorning the art.  

Now knowing all of that in 2019, I bought it. 

What an intriguing package, including a plot device to enable inter-dimensional travel in V&V games and introducing (to the best of my knowledge, anyway) alternate Earths in V&V.  Because the specific alternate Earth in this adventure, called Vine, had Medieval technology, there are new rules to address several aspects of V&V gaming  in a pseudo D&D-like environment. I also liked several of the suggested other, alternate Earths, including one where Europeans/Conquistadores had not yet come to the Americas, so the Aztecs still ruled Mexico.  Having  been interested in the Aztecs and Incas since I was a teenager, I would've loved to put my favorite V&V characters in that setting.