Thread:The S/@comment-995426-20181213001001/@comment-995426-20181214005647

"Tunnel dwellers" is also not appropriate for characters who live in spaceous underground dwellings, like the various lairs, or certainly the Hidden City. Know what I mean? One of the reasons "mole people" is so well-established is that it's been in recurring use to describe real instances of human beings squatting in underground infrastructure, and science fiction has taken the concept and run with it to expand it from real-life shantytowns to entire underground civilizations. As a sci-fi trope it's at least as old as Jules Verne's The Time Machine.