The Pirate Paradox

From Author Wars - https://authorwars.com/books/the-pirate-paradox-8688.html

Overview:

Title: The Pirate Paradox
Author: Scott Ciencin Greg Cox
Year: 1991
Type: Novels
Series: Robert Silverberg's Time Tours
Number in Series: 5

Variant Titles:

1991. The Pirate Paradox