Frank’s mind was centered on the satchel, but when he got outside the uproar and confusion took up his attention. It appeared that in making a curve the express train had run into a derailed freight car, ignoring the danger signal of a red flag, another somewhat back having been overlooked by the engineer.

The locomotive and baggage car were badly damaged. They had plunged into the rear of a freight train and demolished it. Both tracks were blocked. No one apparently had been seriously hurt, although there had been a bad shake-up all around.

The accident had occurred in a lonely cut crossed by a typical country road. The train hands were getting the passengers into the rear coaches that had not been badly damaged. Frank gathered enough from the talk of the trainmen, amid the hurly-burly of the emergency, to understand that it would be several hours before a wrecking train could arrive.

“We’re stalled here, probably till midnight,” Frank heard the conductor say to the engineer.

“You had better get into that coach while I make another search for that satchel, Professor Barrington,” Frank suggested.

“I sincerely hope you will find some trace of it,” was the anxious reply. “I declare! I thought all my troubles had ended when I left New York City with you, and here I find myself in a worse mix-up than ever.”

Frank kept a sharp eye out for the man to whom the fellow with the hollow satchel had signalled. Although he inspected all the coaches and looked over the crowd along the tracks, he could gain no trace of the one he was so anxious to find.

By the time Frank rejoined the professor the conductor of the train had got word to and from a towerman, about a mile away. He announced that it would be some hours before the track could be cleared, a fresh engine obtained, and the journey resumed.

“Any trace of the satchel, Mr. Durham?” was the first question the professor asked.

“I fear we shall never see the satchel or its contents again,” returned Frank, and thought it best to impart all of his suspicions. His companion listened with attention.