A saga of a young man’s odyssey of self-discovery on an eerily alien Earth thirteen centuries in the future.

Rich in detail and filled with beings brought to life with intense energy, this strange and beautiful world reveals its secrets as Sumner Kagan changes from an adolescent outcast to a warrior with godlike powers. In the process, we accompany Sumner on an epic and transcendent journey.

Nebula Award Nominee

“Weird, wild, pretentious but lively stuff with enough zest and daring to rise above the sf/fantasy run-of-the-mill.” – Kirkus

“An instant classic.”—Washington Post

“RADIX is sheer pleasure to read: brimming with living characters, splendid adventures….It is an exhilarating novel.”—Minneapolis Tribune

“Attanasio invents language, customs, hardware, history, small animals, and more good supporting characters than most writers can get into five books.”—Newsday

“Here stands a high talent; a truly amazing, original, towering talent.”—L.A. Times