The Three of Swords

From Author Wars - https://authorwars.com/books/the-three-of-swords-415801.html

Overview:

Title: The Three of Swords
Author: Fritz Leiber
Year: 1989
Type: Omnibuses
Series: Fafhrd and the Gray Mouser [SFBC]

Editions/Publications:

Unknown. The Three of Swords (Unknown, Fritz Leiber, Nelson Doubleday / SFBC, $7.98, xii+496 pages, Hardcover, Omnibus)
Unknown. The Three of Swords (Unknown, Fritz Leiber, Science Fiction Book Club, ISBN-10: 0739430165, $13.99, 496 pages, Hardcover, Omnibus)