Excellent, excellent, excellent! Don't let the page count daunt you--this is an amazingly fast read. While this is an end-times book with a decidedly Catholic flavor, all Christians and even secular civil libertarians will find it to be an edifying (and sobering) read.
Basically, it is the story of a "creeping totalitarianism" that is engulfing North America and the few heroic (mostly Catholic and Evangelical) souls who recognize it and attempt to resist, especially when they discover that it is NOT happening by accident.... Although O'Brien says (I'm paraphrasing) that the novel has a "near future" setting, it has a disturbing "today's headlines" feel. This is well-done Catholic Christian literature, and as such it is not afraid to name names and identify the evils of our time: rampant consumerism, globalism, the New Age infection of orthodox Christianity (and its globalist ties), television, degenerate "art" calculated to destroy the sense of the sacred, the deliberate harassment of the devoutly religious, the annihilation of due process--the list goes on and on. In short, EOTS grippingly depicts the fall of night on Western civilization. The struggle against the darkness of sometimes uneasy coalitions of believers in Christ (and other people of good will) sustained by the grace of God makes for an inspiring cautionary tale.