The Players of Null-A
Book format: An electronic version of a printed book that can be read on a computer or handheld device designed specifically for this purpose.
Publisher: Date:3/1966 - Berkley Medallion
By: A. E. Van Vogt
This is a sequel to Van Vogt's "The World of Null-A." — from the cover: — What strange being was the Follower? That was the question the plagued Gilbert Gosseyn all during his efforts to track down the being that threatened to destroy whole solar systems. Wherever Gosseyn went, the shadow of the Follower fell across his plans, thwarting even the talents of his NULL-A trained double-brain.