Which direction were you heading again? To the hallway from which Derrick found the keys or the other way where a source of light illuminates the area?
@Hekazu this would be a question for @lord of evil since I was not aware that there was a fork in the road and Kenza would probably let him take the lead anyway, considering that he travelled the path before and all.
If it's random, I'll just cast a vote for the left side, 'cuz that's the first side that came to mind.
@Dusksong I'm asking about the fact that the cell block did extend further down and had a corner at that end in addition due to having the door in the other. Thus I'll need to know which direction you pick, especially given the lack of external light sources.