The Fellspine Mystery

[Teppler]

Here are some questions.

Does he only spawn in 1 spot?

If he spawns or spawned in multiple spots, was it a case of one spot spawned him at a much higher rate than others? I've never known another mob to work this way but I suspect this is how Fellspine worked.

I've seen people say the Fellspine PH was past the waterfall area. Then I've seen people say they've seen Fellspine in the first group of PHs right when you enter from CS.

I've seen people who think Fellspine only spawns from one PH. I don't think that's right but I can't be sure.