Gwyndolin will be at the end of a never-ending corridor and throw 3 different random attacks your way
*note that passing through the fog will break your covenant and turn the Anor Londo firekeeper hostile, killing the boss will lock you out of the 'darkmoon blade' miracle for that play-through. The Secret Achievement achievement in Dark Souls worth 61 points Continue playing to unlock this secret achievementĪfter you get your covenant achievement walk through the fog wall and you will be treated to a cutscene, then the boss fight begins.