midnight
The search continued . Don Luis had gradually assumed its management ; and it was he who , so to speak , inspired Weber to ring at this or that door and to question this or that person . At eleven o'clock the hunt still remained fruitless ; and Don Luis was the victim of an increasing and irritating restlessness . But , shortly after midnight , a shrill whistle drew all the men to the eastern extremity of the island , at the end of the Quai d'Anjou . Two detectives stood waiting for them , surrounded by a small crowd of onlookers . They had just learned that , some distance farther away , on the Quai Henri IV , which does not form part of the island , a motor car had pulled up outside a house , that there was the noise of a dispute , and that the cab had subsequently driven off in the direction of Vincennes . They hastened to the Quai Henri IV and at once found the house .