"A man would rather have a sober driver than a drunken one, wouldn't
he?"

"Yes."

"Well, the man who told you he saw Harrigan get the job was sober,
wasn't he?"

"Yes."

"Then why didn't the man take his cab? Because he wanted a drunken
driver, who wouldn't be sharp enough to get on to any queer business.

"But he wouldn't have tried to find a drunken cabman just by luck, and
he wouldn't have taken a sober one. Therefore he had seen Harrigan and
hoped to find him in the same place.

"That's part of the plot. Now, then, you go to Chick, who's watching the
body of the woman. I'm going to take Gaspard uptown and have a look at
that part of the city where Harrigan left his passengers."

Nick and Gaspard went to the Thirty-third street station of the Sixth
avenue elevated road.

They walked to the edge of the platform on the uptown end.

Suddenly Gaspard gave a violent start. He uttered an exclamation of
surprise and pointed across the tracks.

"What is it?" cried Nick.