The HUGO AWARD-winning novel of Earth after the apocalypse

In the depths of the Utah desert, long after the Flame Deluge has scoured the earth clean, the rediscoveries of science are secretly nourished by cloistered monks dedicated to the study and preservation of knowledge.

By studying the Holy Relics of the past, the Order of St Leibowitz hopes to raise humanity from its fallen state to one of grace.

But is such knowledge the key to salvation? Or the certain sign that we are doomed to repeat our most grievous mistakes ... ?