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book cover of The Sigma Curve

The Sigma Curve

(The third book in the Blessing series)
A novel by

Part III of the Blessing Series

Turley Vail has succeeded in forming an alliance of the northern Circle Villages of Imram. As the new Center, he has renounced the temptations of the Blessing Papers. But the triumph rings hollow as first his lovely wife Jeneen dies, and then his son Thomas grows distant. But when trouble threatens the Circle people, father and son take off together to the south to root out the cause. Through arid valleys and the forbidding Lower Mountains, their journey becomes a battle for the entire human race, and one man's courage becomes the final test for the future of all things in the rise and fall of the Sigma Curve.


Used availability for William Barnwell's The Sigma Curve

Paperback Editions

November 2000 : USA Paperback

Title: The Sigma Curve: Part III of the Blessing Series
Author(s): William Barnwell
ISBN: 0-595-14392-X / 978-0-595-14392-4 (USA edition)
Publisher: iUniverse
Availability: Amazon   Amazon UK   Amazon CA   

November 1981 : USA Mass Market Paperback

Title: The Sigma Curve (The Blessing Trilogy, Book 3) (Timescape Books)
Author(s): William Barnwell
ISBN: 0-671-83451-7 / 978-0-671-83451-7 (USA edition)
Publisher: Pocket Books (Simon & Schuster)
Availability: Amazon   Amazon UK   Amazon CA