I don’t think The VVitch ever really gets scary, though I suppose I probably would find it much scarier if I was a Puritan settler in 1600s New England. Likewise, Mountains of Madness isn’t scary to me, but might be if I was a white supremacist. I appreciate both works more for their atmosphere, mood, and tone, rather than eliciting a genuine fright response. Though, I’m a bit biased, as I consume enough horror content to be largely desensitized to it, and tend to enjoy horror more cerebrally than viscerally as a result.