by Robert Silverberg
In addition to its stand-alone volume, this title was published in the follow books. It can be rated independently of any volumes containing it.
Science Fiction Special (17) (1976)
by uncredited
Omnibus, 245 pages
The Masks of Time / Born with the Dead / Dying Inside (1988)
Omnibus, 561 pages
The Book of Skulls / Nightwings / Dying Inside (1991)
Omnibus, 190 pages
Edge of Light (1998)
Omnibus, 981 pages
Other Dimensions (2003)
Omnibus, 736 pages
