eight o'clock
The men often talked about their guard-duty , and disappeared for a day or two to the ramparts , but she was too busy to listen to them . She thought of nothing but her enterprise , which absorbed all her powers . She arose at six a.m. , in the dark , and by seven-thirty M. Niepce and his friend had been served with breakfast , and much general work was already done . At eight o'clock she went out to market . When asked why she continued to buy at a high price , articles of which she had a store , she would reply : `` I am keeping all that till things are much dearer . '' This was regarded as astounding astuteness . On the fifteenth of October she paid the quarter 's rent of the flat , four hundred francs , and was accepted as tenant .