After defeating Chaos Witch Quelaag, ringing the second bell, and leaving Blighttown, our intrepid Knight Sir Thomas wandered far and wide looking for the right path. His journey took him back to the Undead Parish bonfire, past Andre the Blacksmith, to Darkroot Garden, where the Demonic Foliage lives. (I’m not making that up.)
Darkroot is also home to a clan of Giant Stone Knights, napping among the trees. You’d think they would welcome a fellow Knight, but they did not. Apparently they don’t like to be woken up. Fortunately they are slow and easily dispatched.
The last Stone Knight slept before an ancient ruin, with an unexpected doorway of white light at the top of the stairs. Not having any other plans, Sir Thomas walked through and found himself stuck on a bridge facing the Moonlight Butterfly boss fluttering not very far away.
At first I didn’t think I would be able to handle it because it hovers out of melee range for quite a while, shooting green glowy magic thingys. But after dying a number of times I discovered that if you stay alive long enough, the butterfly will cross overhead to the other side of the bridge and land, waiting patiently there for a while so you can run in and kill it. If you don’t kill it fast enough, presumably you’d have to endure another barrage of green magic before it lands again. I was able to bring it down pretty fast by two-handing my Halberd, which by then had been upgraded to at least Raw +1.
After defeating the Moonlight Butterfly, the bridge led to the workshop of a blacksmith who had been turned to stone while clutching a Watchtower Basement Key and a Divine Ember. Sir Thomas was no closer to his goal, but at least he could open a new door.