Earth's only satellite, the Moon, plays no very significant role in these stories, but is shown to have some native underground life.

The one great curse of this underground life was never having either sunlight or electric light by which to read.

She also gives up details about his underground life.

He had had what I may call his underground life.

Due to their underground life the eyes are small.

He led underground life for several times due to Political reasons.

The walls later became of stone, but it made underground life even tougher.

Despite having been away for eight years, Paul is swiftly drawn into the underground life he knew as a youth.

After two years of underground life, he was caught by police.