The man shrugged his shoulders blankly.
With keen glance, Kennedy strained his eyes. Far up the avenue, he could descry the car threading its way in and out among the others, just about disappearing.
A moment later Craig caught sight of the vacant taxicab and crooked his finger at the driver, who answered promptly by cranking his engine.
"You saw that limousine standing there?" asked Craig.
"Yes," nodded the chauffeur with a show of alertness.
"Well, follow it," ordered Kennedy, jumping into the cab.
"Yes, sir."
Craig was just about to close the door when a slight figure flashed past us and a dainty foot was placed on the step.
"Please, Mr. Kennedy," pleaded Elaine, "let me go. They may lead to my father's slayer."
She said it so earnestly that Craig could scarcely have resisted if he had wanted to do so.