The chilling conclusion to Newcomb's majestic but sometimes ponderous trilogy (after March into Darkness
) suggests that the bloody, centuries-old War of Attrition between the countries Rustannica and Shashida may never end. Evil wizard Gracchus Junius is determined to persuade the impoverished Rustannica Emperor Vespasian, whose magical gifts far exceed those of all other Rustannica wizards combined, to destroy Shashida with banned magic and steal all its gold. Meanwhile, Prince Tristan and Princess Shailiha of the distant country Eutracia, talented magicians destined to end the War of Attrition, are struggling to learn to use the magical substance known as “subtle matter” and find the subterranean Azure Sea that will take them to Shashida. Those who haven't read earlier installments and the preceding trilogy may feel a bit lost amid the intricate magical systems and large cast, but Newcomb juggles the various plots and people with aplomb. (Dec.)