Then he went on whittling busily with his knife. The children watched him for a long time in silence, and they thought what a fine thing it must be to work like the old man for Saint Nicholas, in his little house of boughs under the forest trees. Then the old man said, "You are very small children; what are you seeking so far away from people?" And Estelle answered, "Our old grandmother is very sick, and we are looking for meat to make broth to make her well." The old man was sorry he had no meat, for he lived on other food. He told them that some distance farther along there was a butcher who always kept meat; but the butcher, he said, was a very wicked fellow and sometimes little children who entered his shop never came out again. The children were very frightened when they heard what the old man said and they wondered if they had better go back home. But the old man thought for a long time in silence as he whittled his willow wands, and then he said, "I will give you each a whistle, and when you blow it, Saint Nicholas will always hear it; you must never blow it except when you are in great trouble or distress, and when Saint Nicholas hears it he will know that you are coming to grief or that harm is already upon you and he will come himself or send some one to your assistance. But you must blow only one blast. The whistle should be given only by Saint Nicholas himself when he comes at holly-time into the land. But you are good children and your old grandmother is sick, and you are trying to make her well, and I know that Saint Nicholas will not say that I have done wrong." So he gave the children each a whistle, and then fear left them, for they knew they could now come to no harm if they had the aid of Saint Nicholas.