In most prisons on most nights, the ambient sound levels drop in stages until 2 or 3 a.m., when it's virtually silent, a "witching hour" held in a vacuum. In this setting, one has great opportunities to do pure, uninterrupted thinking. Perhaps this also opens us up to experiencing things that normally would be missed or lost in the din of the active world. The sense of the "dark" spirit we've felt is not only tangible, but also not easily dispelled.

- from Spirit Death: Traumas and Renewals of Our Souls by Garry Erwin


"Prison Sink (Kohlet Chilton model) with History of Penal
Institution Sanitation" by M. J. Bole.