Katharine Lauderdale, Volume 1 by F. Marion Crawford

Katharine Lauderdale slept sweetly that night. She had, as she thought, at last reached the crisis of her life, and the moment of action was at hand. She felt, too, that almost at the last moment she had avoided a great risk and made a good resolution -- she felt as though she had saved John Ralston from destruction. Loving him as truly as she did, her satisfaction over what she had done was far greater than her pain at what he had told her of himself.

But this was not insignificant, though she wilfully made it seem as small as she could. It was quite clear that it was not a matter to be laughed at, and that Ralston did not deserve to be called quixotic because he had thought it his duty to tell her of his weakness. It was not a mountain, she was sure, but she admitted that it was not a mole-hill either. Men who exaggerated the golden letter of virtue at the expense of the gentle spirit of charity, as her father did, exaggerated also, as a rule, those forms of wickedness to which they were themselves least liable. She knew that. But she was also aware that drinking too much was not by any means an imaginary vice. It was a matter of fact, with which whole communities had to deal, and about which men very unlike her father in other ways spoke gravely. Nevertheless, though a fact, all details connected with it were vague.