The Day of Their Return

Know about the book -

The Day of Their Return is written by Poul Anderson and published by Tom Doherty Assoc Llc. It's available with International Standard Book Number or ISBN identification 0812523091 (ISBN 10) and 9780812523096 (ISBN 13).

While the new Terran Commissioner will do whatever is necessary to preserve the Empire, Ivar, a fugitive sought by both the Empire and Terra's alien rivals, becomes a potent symbol to those who would resist Imperial rule. Reissue.