Wikipedia
Undercity
The Undercity is a part of the fictional universe featured in the Judge Dredd series that appears in the UK comic book 2000 AD.
Undercity (novel)
Undercity is a 2014 novel by Catherine Asaro. It is the seventh novel of the Saga of the Skolian Empire series. It is the first novel in the Skolian spin-off featuring Major Bhaajan and consists of a massive expansion on the novelette "The City of Cries".