"This is..." Roland looked at Garcia.
"It's a lift," she proudly responded. "Wait a moment, soon you'll be able to see."
Not long after she had finished talking, the light outside of the window turned from red to green and then the curtains were automatically lifted, revealing the view outside.
Roland immediately understood the reason for her pride. The bus was parked on a huge iron plate, surrounded by yellow and black warning signs painted on concrete walls with five or six metal orbits embedded in, which continuously issued a gear grinding sound.
They were traveling down a tunnel with each descending level marked by dazzling spotlights and huge number signs. Within a few minutes, they had descended more than 100 meters, but the numbers were still growing.