Actually, it's not TOTALLY dark in that little passageway. It's very dark, but there is some blue light there. Normally I have Chill Sight up anyway, though. But I used to be bound in the Firepot Room, and I'd zone to Neriak to avoid the water dragon that would show up there periodically.

Sure enough, I could still see the passageway. Barely, but I could see.
Jaranna Lileath
Lady of the Flame
Inner Circle - Neutrality
Daughters Nocturnae
Are you trying to peek under my robe, sweety?