Ophelia VII is the oldest of the Imperium of Man's Cardinal Worlds, second in sanctity to the faithful of the Imperial Cult only to Terra itself. It is the site of the Synod Ministra and the Adepta Sororitas' Convent Prioris. The world is given over entirely to the worship of the Emperor of Mankind. Its surface is covered in mile-high cathedrals and bell towers, linked by avenues lined with the statues of thousands of Imperial Saints. Dungeons plunge deep into the bowels of the world, where Heretics are made to repent their sins, subject to such methods of soul-cleansing as Arco-flagellation, death-masking, soul-scouring and the feared Trial of Castigation.