She had, of course, heard him knocking at the window. Swann could at once detect in this story one of those fragments of literal truth which liars, when taken by surprise, console themselves by introducing into the composition of the falsehood which they have to invent, thinking that it can be safely incorporated, and will lend the whole story an air of verisimilitude. It was true that, when Odette had just done something which she did not wish to disclose, she would take pains to conceal it in a secret place in her heart. But as soon as she found herself face to face with the man to whom she was obliged to lie, she became uneasy, all her ideas melted like wax before a flame, her inventive and her reasoning faculties were paralysed, she might ransack her brain but would find only a void; still, she must say something, and there lay within her reach precisely the fact which she had wished to conceal, which, being the truth, was the one thing that had remained. She broke off from it a tiny fragment, of no importance in itself, assuring herself that, after all, it was the best thing to do, since it was a detail of the truth, and less dangerous, therefore, than a falsehood.