"Never saw him before," confessed Merry.
The wiper was dismissed.
"Hackett," called the engineer.
The other wiper did not seem to hear. He pretended to be very busy, and kept at work.
"Hackett!"
He could not fail to hear that. He kept his face turned away, but answered:
"Yes, sir."
"Come here. I want you."
The wiper hesitated. Then he turned and slowly approached. His face was besmeared till scarcely a bit of natural color showed, and his hat was pulled low over his eyes. He shambled forward awkwardly, and stood in an awkward position, with his eyes cast down.
Frank looked at him closely and started. Then, in a perfectly calm manner, but with a trace of triumph in his voice, he declared: