City of Sorcery is a science fantasy novel by American writer Marion Zimmer Bradley, part of her Darkover series. A sequel to Thendara House, it was originally published by DAW Books in October 1984.

The Forbidden Tower is a science fantasy novel by American writer Marion Zimmer Bradley, part of her Darkover series. Originally published by DAW Books in 1977, it is the sequel to The Spell Sword and