by H. Beam Piper
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.
The Second Astounding Science Fiction Anthology (1954)
by John W. Campbell, Jr.
Anthology, 224 pages
Robert Adams' Book of Alternate Worlds (1987)
by Robert Adams, Pamela Crippen Adams, Martin H. Greenberg
Anthology, 366 pages
The Complete Paratime (2001)
by H. Beam Piper
Omnibus, 424 pages
Part of the Paratime Police series.
The Paratime Police Chronicles: Volume I (2018)
by H. Beam Piper, John F. Carr
Anthology, 320 pages
Part 1 of the The Paratime Police Chronicles series.
