Board Thread:Dark Souls/@comment-2.50.226.242-20160712195217/@comment-4511886-20160713082246

I can't remember there being any door that is opened (granted, I haven't watched that cutscene in forever) so I don't know.

On the bright side, you're not missing out on anything critical. Logan's got some strong sorceries and equipment, if you're a high intelligence build, but the miracles are pretty much co-op only, and situational even at that point. The Fire Keeper Soul can also easily be substituted by the souls found at the start of NG+.

If you do figure out what's going on, then feel free to share.