By the time twilight had faded and the stars had appeared, his makeshift shelter was as well fortified as he could make it; whether it was wolf-proof remained to be tested. The test would not be long in coming. He had already heard a few howls from the west. His fire was rekindled, but there was no light left outside the circle of firelight to permit the gathering of his daily collection of purple cactus fruit-his only source of nourishment except on Sundays, when a few handfuls of parched corn were sent from the abbey after a priest had made his rounds with the Holy Sacrament. The letter of the rule for a Lenten vocational vigil was not so strict as its practical application. As applied, the rule amounted to simple starvation.