The Underground path was a long corridor with plenty of space. At the end of the corridor the first room would be found.
It was the room where the act happened. Where the women were tortured and kept. There were some dead bodies on the ground before, although they were all taken outside by Lilith's orders.
If one was to walk either left or right, they would come across two identical rooms.
Underground, there were four rooms. Two were treated as prisons complete with steel bars to not let any pregnant captives escape. Then if one was to continue walking with the same pace and with the same number of steps they would arrive at another station where women were kept for breeding and some more dead bodies.
These were the four rooms of the underground ruins. There shouldn't be anything else to think about. It was closed and that's all there should be to it. But something did not sit right with Lilith.
Thanks for reading :)