Set in the same future universe as Ventus
(2000), Canadian author Schroeder's challenging hard SF novel explores the vast potential of artificial intelligence for transforming human culture. On the remote ring world of Teven Coronal, Livia Kodaly and her family inhabit the beautiful Westerhaven manifold, surrounded by a richness of high tech and virtual conveniences. Due to a childhood tragedy, Livia enjoys different consensual realities. The mysterious Book 3340 breaks down the barriers between manifolds, destroying her world, so that she must travel, with a few accomplices, out of Teven Coronal into the Archipelago, where she encounters several models for a perfect human society and examines her own. Her task is to choose among them, but ultimately to ensure that choices are possible by sacrificing herself to prevent the total subjugation of humanity. The interrelationship between technology and philosophy that informs her choice gives depth and breadth to a book that many will want to reread to get all the nuances. Agent, Donald Maass. (July)