The musty stairway ended at the subbasement which then connected the building to a series of vast, underground tunnels linking all of the buildings on the old part of campus together. Steam pipes for heating, water mains and power lines all ran through the tunnel system from building to building. As one of the oldest and most central buildings on campus, Harrison Hall was the hub of the network. On his previous excursion Eric had discovered several locked doors leading away from the central portion of the Harrison Hall subbasement. Earlier that day, he'd accessed a map of the steam tunnel system and learned that the doors opened onto tunnels leading to different sections of the campus. He longed to explore the network, but unfortunately, he lacked the necessary access key. He resolved to g