four o’clock
I had been too wary for that . A tub had caught all -- ha ! ha ! When I had made an end of these labors , it was four o'clock -- still dark as midnight . As the bell sounded the hour , there came a knocking at the street door . I went down to open it with a light heart , -- for what had I now to fear ? There entered three men , who introduced themselves , with perfect suavity , as officers of the police .