Strange noises emanate from below, further into this abysmal cave-- A horrid, drawn out groaning, perhaps from the putrid mouth of a hollow whose mind has lost all notions of sanity... or perhaps it is the noise of some unknown beast, its mouth dripping with drool as it pictures its next meal approaching ...!
... Or perhaps it’s merely Siegmeyer, letting out a tremendous yawn. Yes, that seems more sensible, as the knight himself can be seen wandering aimlessly, each step of his heavy with fatigue. Eventually, he comes to a slight cliff, and he glances around for a minute before taking a seat, dangling his armored feet off the edge. Almost instantaneously, his demeanor changes from ‘rather tired’ to ‘rather pleased’, completely ignoring the mood of the area around him.
More importantly, his appearance means that no, he hasn't lost ALL of his marbles just yet. What he’s planning is anyone’s guess, but for now he seems content to just sit and sigh, becoming “simply absorbed in thought”... as he usually is.