Pilgrimage Ark—Ever since Duncan had laid eyes on these "giant ships" that resembled small City-States, ever since he learned of their unceasing pilgrimage across the sea, he'd harbored doubts about these astonishing creations.
What did the Pilgrimage Arks truly signify, and their peculiar "pilgrimage" activities... Were they merely "patrolling"?
People in the City-States often said that the Pilgrimage Arks represented the mighty powers of the Four Gods, they were the symbol of the Church's highest military force, as well as the "mobile palaces" of the four true gods in the mortal world. The Church commanded the arks to patrol the Endless Sea, to deter the heretics, to protect the City-States from contamination by malevolent beings from Subspace. Initially, Duncan hadn't doubted this explanation, but the more he dealt with the Church of the Four Gods, especially after learning more and more inside information from Fenna, Morris, and Agatha, he began to notice discrepancies.