As an unfathomably powerful AI threatens the freedom of humanity, Martin Raines must return to medieval Europe to learn the truth about GRAIL and the Codex Babylon.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.