Publication history:
- 1968: Galaxy November 1968, Magazine, as Perris Way
- 1969: Nightwings, Avon Mass market paperback, 190 pp.
- 1970: Nightwings, Walker Hard cover book
- 1972: Nightwings, Sidgwick & Jackson Hard cover book
- 1973: Ali della Notte, Mass market paperback, in Italian
- 1974: Nightwings, Sphere Mass market paperback, ISBN 0-7221-7834-4, 192 pp.
- 1974: Science Fiction Special 10, Sidgwick & Jackson Mass market paperback
- 1976: Nightwings, Avon Mass market paperback, 190 pp.
- 1978: Nightwings, Sphere Mass market paperback, 192 pp.
- 1979: Nightwings, Avon Mass market paperback, ISBN 0-380-41467-8, 190 pp.
- 1981: A Robert Silverberg Omnibus, Harper & Row Hard cover book
- 1981: A Robert Silverberg Omnibus (The Man in the Maze/Nightwings/Downward to the Earth), Science Fiction Book Club Hard cover book, 497 pp.
- 1983: Nightwings, Avon Mass market paperback, ISBN 0-380-41467-8, 190 pp.
- 1987: Nightwings, Futura Orbit Mass market paperback, ISBN 0708882358
- 1987: Nightwings, Avon Mass market paperback, 190 pp.
- 1999: Nightwings, Peanut Press Online
- 2000: Nightwings, Fictionwise Online
- 2000: Nightwings, Bookface Online
- 2001: Nightwings, iBooks Trade paperback, ISBN 0743474465, 218 pp.
- 2003: Other Dimensions, Science Fiction Book Club Hard cover book
- 2003: Nightwings, Mass market paperback
Other resources:
[None on record]

Comments:
A sequel to , and Part 2 of the novel. The Earth has been conquered in a single night, and the former Watcher, now Guildless, leaves Roum to join the guild of Rememberers, whose headquarters is in the city of Perris. Outside Roum, he meets a masked Pilgrim who turns out to be the deposed Prince of Roum, his eyes plucked out by the jealous Gormon (who was in fact an advance spy for the invaders) in retaliation for stealing Avluela. Together, the two walk from Roum to Perris, where the Watcher is apprenticed to the Rememberers and given the name of Tomis. The Prince remains incognito as a hanger-on in the Rememberers' Hall as Tomis learns the mysteries of Earth's past, including the secret of the invaders' ancient grudge against Earth. Meanwhile, the Prince (up to his old tricks) seduces the Rememberer Olmayne and involves Tomis in a knot of treachery that could betray both to the invaders. The story continues in .