The mysterious death of the lava giant causes a good chunk of the caldera to solidify and be "survivably" traversable. Unfortunately the zone is home to a whole bunch of demons and while I manage to kill -one- it takes too much time and too many resources, especially as there are like six more behind him? Yeah, I decide to get out of there - purchasing a uchigatana from Shiva at Blighttown so I don't leave empty handed.
That's one ugly sock puppet.
I arrive back at Firelink to find the mute girl is dead, Lautrec is missing, and both Petrus and Ser Dick are as useless as ever. In the nearby ruin I also meet Kingseeker Frampt, the ugliest sock puppet ever, who tells me to go to Anor Londo to retrieve "the Lord Vessel" - something that can hold gigantic souls. Filled with purpose I head to the gates of Sen's Fortress (I wonder if there's any relation with Sen Mag dungeon from Mabinogi) which serves as the path to Anor Londo. Due to his absence I assume Ser Chubby forged ahead once that gate opened so I follow suit, only to find the entire place is a fricking death trap!
Blade pendulums: Check!
Apart from the reasonably tough lizardmen guarding the place, the layout is filled with narrow ledges with blade pendulums, dart shooting pressure plates, giant boulders rolling down various corridors, and chests that are actually really strong and freaky mimics! Since the bottom, flooded level (where you fall to if you goof up on the ledges) is inhabited by a number of those stone headless lightning things I decided that up is the way to go.