Even more nervous now

Their hearts were beating faster and harder than ever now. They had obviously now entered the portion of the mine where people first worked. There was a network of tracks that led to a deeper maze. Carts still sat on those tracks, as these were used to collect the goods that the men had dug back then.

Follow the yellow brick road

The men decided to venture further, like Dorothy following the yellow brick road as she set off to see the wizard. This was when the came upon the ultimate find, a control room that powered the entire project. There were huge generators still connected to wires. They had hit the jackpot, or so they thought…