“I will, Jerry, right away. I am so glad to get back that black beetle.”

“You’re no gladder than I am,” chuckled the fat man behind the curtains of his berth. And from the fact that he laughed it might be argued that he harbored no ill feelings. Which was the case, for the next day he and the professor became fast friends.

The remainder of the night passed without incident, and morning found the travelers well on their way to Thunder Mountain. They had traveled so much that it might be supposed such life had in it nothing novel for the Motor Boys. But they were not spoiled, and took a keen interest in everything that went on around them.

They even helped Professor Snodgrass capture some specimens of a peculiar fly that invaded the car when the train was passing through a wooded section.

“I’m glad we don’t have to worry about Noddy Nixon and those two unlovely specimens that were traveling with him,” observed Bob one day as he and his chums came from the dining car.

“That’s right,” added Ned. “We gave them the slip good and proper. Noddy sure had his nerve with him to follow us and try to get Bill away from us.”

“I’ll say he did!” declared Jerry.

“You fellows don’t ever need to worry about me throwing in with that skunk!” declared the old miner. “I’m with you from now on, and I won’t as much as speak to Noddy Nixon if I see him.”

“I guess we aren’t likely to see him,” remarked Ned.

Mile after mile was reeled off by the clicking wheels and, in due season, allowing for a half day’s delay caused by a freight wreck, the travelers reached Livingston, Montana. This is a small station and is where tourists change to take a train that carries them to Yellowstone Park, that land of wonders.