The Black Tower is a novel by Richard A. Lupoff published by Bantam Books in 1988.

The Black Tower is the first book in Philip José Farmer's Dungeon series, taking place in a mysterious prison the size of a world, which holds creatures found across both time and space.

[1] J. Michael Caparula reviewed The Black Tower in Space Gamer/Fantasy Gamer No.

[1] Caparula commented: "The book is fast and at times fun, but be warned that it is far from a complete work.

It seems to me that even novels that are part of a series should be able to stand on their own.