"But he's taking no notice of the girl. She is going to her cab alone."
"Oh, well, I've never seen them together."
The two detectives rose hurriedly. By the light of the street-lamps, they recognized Lupin's figure, as he walked away in the opposite direction to the square.
"Which will you follow?" asked Ganimard.
"'Him,' of course. He's big game."
"Then I'll shadow the young lady," suggested Ganimard.
"No, no," said the Englishman quickly, not wishing to reveal any part of the case to Ganimard. "I know where to find the young lady when I want her.... Don't leave me."
At a distance and availing themselves of the occasional shelter of the passers-by and the kiosks, Ganimard and Shears set off in pursuit of Lupin. It was an easy enough pursuit, for he did not turn round and walked quickly, with a slight lameness in the right leg, so slight that it needed the eye of a trained observer to perceive it.
"He's pretending to limp!" said Ganimard. And he continued, "Ah, if we could only pick up two or three policemen and pounce upon the fellow! As it is, here's a chance of our losing him."