Anathem

Set on the distant world of Arbre, "Anathem" plunges readers into a fascinating society split between the Saecular world and the Concent, a sanctuary for mathematicians, scientists, and philosophers known as avout. For millennia, the avout have lived a cloistered existence, dedicating themselves to pure thought and periodically opening their gates for the 'Apodeixis,' a rite celebrated once a decade, once a century, or once a millennium. Erasmas, a young avout, finds his serene life upended when an alien spacecraft appears in Arbre's sky, signaling an unprecedented crisis. This event forces the Concent to break its ancient vows of non-interference and engage with the technologically stunted Saecular world. As Erasmas embarks on a perilous journey, he uncovers a universe-spanning mystery that challenges fundamental concepts of time, reality, and consciousness, forcing him and his companions to confront existential threats that could redefine their understanding of life itself and determine the future of their world and beyond.