I followed the hole in the floor downward, extending my influence swiftly. I kept going and going. I was amazed by the depth of the hole; that ritual was worth every bit of Essence it drained from me! I finally found the source of the oil, a massive cavern over forty thousand feet below me! That’s twelve kilometers! Seven and a half miles! Why am I converting between Dwarven and human standard measurements? Because I am in shock!