four o’clock in the morning
And ... oh , rot ! ... Let 's get to sleep ! ... '' But he could not sleep ; and a good part of the night went in this way . At four o'clock in the morning he seemed to hear a noise in the house . He jumped up quickly and , from the top of the staircase , saw Daubrecq go down the first flight and turn toward the garden . A minute later , after opening the gate , the deputy returned with a man whose head was buried in an enormous fur collar and showed him into his study . Lupin had taken his precautions in view of any such contingency .