The family was imprisoned in the cellar of the plain, two-story residential block, which Josef subsequently extended. He installed a sliding reinforced concrete door, locked by number code, and hid it behind shelves. Some parts of the basement cells were no more than 1.70 meters (5 foot 6 inches) high. A narrow corridor led into several rooms including a cooking and sleeping area, a small bathroom with a shower, and a padded cell. A tube provided ventilation. __
