midnight
But the brightly lit windows and the shouts of laughter astonished him . When , however , he recognized Mignon 's voice , he understood it all and went off , raging at this new obstacle , driven to extremities , bent on some violent act . Georges passed through a little door of which he had the key , slipped along the staircase walls and went quietly up into Nana 's room . Only he had to wait for her till past midnight . She appeared at last in a high state of intoxication and more maternal even than on the previous nights . Whenever she had drunk anything she became so amorous as to be absurd . Accordingly she now insisted on his accompanying her to the Abbey of Chamont .