from under bushy eyebrows two restless black eyes glistened.

Like Bob, this man surveyed his fellow passengers, giving them, however,
only a momentary glance, until his eyes rested upon Bob, and upon him
they lingered, glancing him over from head to foot, and then dropping to
the lunch-box which was on the floor.

During this inspection of himself, Bob had also been examining the man
more closely, and had discovered that his forehead was marked with a
deep scar.

"You don't happen to have any lunch in that box, do you, that you would
be willing to sell me?" asked the stranger. "I didn't have time to get
any before I started. In fact, I came mighty near losing the train as it
was, and there won't be any station where I can get anything before
noon."

"Why, yes," replied Bob; "that is, I have some lunch. But I won't sell
it to you. You are welcome to some of it, if you would like it."

How the man had been able to divine that his package contained food,
Bob could not understand. But had the boy been as keen an observer as
the stranger, he would have noticed that the paper on one end of the box
was saturated with grease, causing the obvious inference that some sort
of food was wrapped up inside.

"I don't like to take your grub for nothing, son," returned the other,
"but I sure am hungry. I have always made it a rule never to accept
anything from any one without giving something in return. So I tell you
what I'll do. If you're sure you won't accept any money, and will give