Thanks for your help.
I am getting confusing results.
In my GOG no-patch version of U7, I jumped on the magic carpet and flew east to west over the entirety of the Serpent's Spine. I found two caves:
9N, 30N - Shamino says "this is Despise" (in the lake where Shame was in Ultima 4/5/6)
31N, 4W - Shamino doesn't say anything.
I'm trying not to "look stuff up" as it is my first time playing Ultima 7, but I thought given the bug issue in play here I'd lookup the coordinates of Despise get a general idea of where to look.
I found this link from 2002, which I assume predates Exult and any of the patches and would match the GOG Version I'm playing.
https://www.ign.com/faqs/2002/ultima-vii-the-black-gate-walkthroughfaq-372519 In the list of dungeons it lists Despise as being at 9N, 30N, where Shamino says it is, which is by the mountain lake where Shame was in Ultima 4/5/6. And, Shame isn't listed on on their dungeon list at all.
What I'm ultimately trying to confirm is which dungeon entrance should I use for the mission the Time Lord gives me to destroy the generator (he says it's in Despise)? It seem like I should use the cave entrance at 9N, 30N which Shamino calls Despise, but I'd rather avoid a wild goose chase.
Thanks much for any insight anyone has!