Secret Comics Japan : Underground Comics Now

Get on Board: The Story of the Underground Railroad

Notes from the Underground

Satans Underground: The Extraordinary Story of One Woman's Escape

Something in the Blood: The Underground World of Today's Vampires

Badlands: An Underground Science Fiction Novel

Silenced: The Wrath of God Descends (Underground Zealot)

My Name Is Katherine: The True Story of Katie Beers, the Little Girl Who Survived an Underground Dungeon of Horror (True Crime Library)

The Underground City

The Underground Man: A Lew Archer Novel