COURTESY OF BOAZ ZISSU

AN INCONSPICUOUS OPENING. Located in the hills on the western edge of Jerusalem, the Te’omim Cave functioned as a quarry, a refuge and a place of devotion at different times in antiquity. Its small entrance—about 13 feet above the wadi’s floor—belies the cave’s vast, complex interior. Author Boaz Zissu’s son, Yothan (left), and father, Sergiu (right), stand outside the cave’s entrance.