The freight train made a strong rumble as it moved along, but presently Bob fancied he heard footsteps on the top of the car behind him.
He was not mistaken, for in a moment the form of a man appeared overhead. The man looked down, as if searching for something.
“One of the train-hands most likely,” thought Bob. “Maybe he saw what took place, and wants to know what it is all about.”
Bob was about to call out, when he made a discovery that filled him with surprise.
The man above was James Casco.
Casco had jumped aboard the sixth car behind the one boarded by the young photographer.
That he was bent on searching out Bob the youth felt certain, and he crouched low as the man bent down to get a better view in the semi-darkness.
“Must be the next platform,” Bob heard Casco mutter. “Although I was almost certain it was this one.”
He was about to pass on, when just then the train rolled past a farm-house, from the upper windows of which streamed a strong light.
The light fell directly upon Bob, and Casco caught a full view of him.