"Oh, be good, Bess," Nan admonished her. The pup began to whimper again.
"Come on; let's find the man."

The girls ventured farther forward. When they opened the door of the car at that end, Bess screamed outright.

"Why! it's a tunnel, Nan," she ejaculated. "Do you see?"

"What a lot of snow there must be above us," her chum rejoined, with gravity.

"Why, this is just the greatest adventure that ever happened," Bess continued. "The men have tunneled through the drift from one car to the other. I wonder how thick the roof is, Nan? Suppose it falls on us!"

"Not likely," responded her chum, and she stepped confidently out upon the platform. The door of the forward car stuck and after a moment somebody came and slid it back a crack.

"Hullo, young ladies!" exclaimed the brakeman, who looked out. "What do you want forward, here?"

"We want to speak to the baggage-man, please," Nan said promptly.

"Hey, Jim!" shouted the brakeman. "Here's a couple of ladies to see you. I bet they've got something to eat in their trunks and want to open them."

There was a laugh in chorus from the crew in the forward baggage and express car. Then an older man came and asked the girls what they wished. Bess had grown suddenly bashful, so it was Nan who asked about the dog.