Radix Tetrad
The Radix Tetrad is a group of four science fiction books by A. A. Attanasio. The first novel, the Nebula Award-nominated Radix, was published in 1981, and the last novel, The Last Legends of Earth was published in 1989.
All four books of the Tetrad are being re-issued by Phoenix Pick, an imprint of Arc Manor Publishers.The Tetrad
