You were 'lucky' to take-down one of those humanoids (inhuman large guards), as 'you' then gaze upon a key of sorts (from the guard) and take for safe keeping of when the need arises. As you begin to walk-stealthily among the prisons (in Dungeon of Fear & Hunger) several jail cells, then that's where you see a 'living normal' person locked inside a cell and they call out to you Ah-ha~ will a sweet-looking and "kind soul" do me a 'solid' for me? Free me, pretty please.~ He said, whimsically