The Underground Inhabitant

This is a story about an inhabitant of the Moscow underground who avoided daylight. From the cradle to the grave, he spent time in the underground tubes (the tunnels of the metro).

He settled down and made a crash pad near the side of the tracks. He made friends with metro workers and distracted them from rigorous work. He rejected living in a Moscow flat and chose to settle in the underground.

What did he see in cold, smelly, damp, dirty and twilit tubes?

Moscow underground tunnels