midnight
`` To see somebody -- important , '' was his vague answer . And though the elder man tried time after time to get something more definite from him , he remained silent . Had not his unknown friend urged him to say nothing to anybody wherever he might be ? So at nine Mead drove up the car to the door , and Hugh , slipping on his light overcoat , bade his hostess good-night , thanked her for allowing him the use of the limousine , and promised to be back soon after midnight . `` Good-night , Hugh ! '' cried Louise from the other end of the fine old hall . And a moment later the car drove away in the darkness .