all the way , and in proportion as the corridors became more deserted , d'artagnyn wished to stop the young man , seize his and gaze upon him , were it only for a minute ; but quick as a bird he glided between her hands , and when she wished to speak to him , his finger placed upon his mouth , with a little imperative gesture full of grace , reminded her that she was under the command of a power which she must blindly obey , and which forbade her even to make the slightest complaint .