The two men started over toward the ferries.
"Will you stand a carriage?" asked the detective.
"What do you want of a carriage?"
"I must get back to go on duty."
"We don't want any carriage."
The man was struck with a shade of suspicion.
"Where are we to go?"
"To Ludlow Street."
The man started back and turned pale.
"To Ludlow Street!" he ejaculated.
"Yes."