After clearing 9 metres of the descending passage, in about the middle of the afternoon, we came upon a second sealed doorway, which was almost the exact replica of the first.
Know what you're trying to do before you do it. Turning knobs at random isn't enlightening any more than throwing paint at a wall blindfolded will let you paint a nice picture.
One of the members of the group, I can't remember which one, found out we were making $3 - $5,000 a night. We were getting a hundred dollars a week a piece. Everybody got upset about it.