He had had the hardihood to explore such crypts as these, just as in the secular art he had discovered, under an enormous mass of insipid writings, a few books written by true masters.

He also inspected the crypts of churches, to unearth traces of the priests' lubricity.

Pillars have been left at regular intervals, to support the masses above, and their huge, dim labyrinths resemble the crypts of some great cathedral.