thing to eat is three miles away and the drifts are nobody knows how many feet deep."
Betty laughed. She was about to say something cheerful in reply when a sudden sound smote upon their ears—a sound that startled the two girls. Somewhere from over the verge of the high bank of the cut on their left hand sounded a long-drawn and perfectly blood-curdling howl!
"For goodness' sake!" gasped Bobby, grabbing her friend by the arm. "What sort of creature is that? Hear it?"
"Of course I hear it," replied Betty, rather sharply. "Do you think I am deaf?"
Only a very deaf person could have missed hearing that mournful howl. It drew nearer.
"Is it a dog?" asked Bobby, almost in a whisper, as for a third time the howl sounded.
"A dog barks, doesn't it? That doesn't sound like a dog, Bobby," said Betty. "I heard one out West. I do believe it is one!"
"One what?" cried Bobby, almost shaking her in alarm and impatience.
"A wolf. It sounds just like a wolf. Oh, Bobby! suppose there should be a pack of wolves in these hills and that they should attack this train?"
"Wolves!" shrieked Bobby. "Wolves! Then me for in-doors! I am not going to stay here and be eaten up by wolves."