Then, when I thought that I could hear her stirring, so that she should not be kept waiting but might, the moment she had brought me the milk, go to sleep again, I ventured on three little taps, timidly, faintly, but for all that distinctly, for if I was afraid of disturbing her, supposing that I had been mistaken and that she was still asleep, I should not have wished her either to lie awake listening for a summons which she had not at once caught and which I should not have the courage to repeat.