But the sharpest thorn in her flesh--and even in that of her phlegmatic husband--was the base desertion to the enemy's camp of Abel Flique. In the days when Madame Caille was unmarried, and when her ninety kilos were fifty still, Abel had been youngest commis in the very shop over which she now held sway, and the most devoted suitor in all her train. Even after his prowess in the black days of '71 had won him the attention of the civil authorities, and a grateful municipality had transformed the grocer-soldier into a guardian of law and order, he still hung upon the favor of his heart's first love, and only gave up the struggle when Jean-Baptiste bore off the prize and enthroned her in state as presiding genius of his newly acquired épicerie. Later, an unwittingly kindly prefect had transferred Abel to the seventeenth arrondissement, and so the old friendship was picked up where it had been dropped, and the ruddy-faced agent found it both convenient and agreeable to drop in frequently at Madame Caille's on his way home, and exchange a few words of reminiscence or banter for a box of sardines or a minute package of tea. But, with the deterioration in his old friends' wares, and the almost simultaneous appearance of the Salon Malakoff, his loyalty wavered. Flique sampled the advantages of Hippolyte's establishment, and, being won over thereby, returned again and again. His hearty laugh came to be heard almost daily in the salle de coiffure, and because he was a brave homme and a good customer, who did not stand upon a question of a few sous, but allowed Hippolyte to work his will, and trim and curl and perfume him to his heart's content, there was always a welcome for him, and a smile from Madame Sergeot, and occasionally a little present of brillantine or perfumery, for friendship's sake, and because it is well to have the good-will of the all-powerful police. From her window Madame Caille observed the comings and goings of Abel with a resentful eye. It was rarely now that he glanced into the épicerie as he passed, and still more rarely that he greeted his former flame with a stiff nod. Once she had hailed him from the doorway, sardines in hand, but he had replied that he was pressed for time, and had passed rapidly on. Then indeed did blackness descend upon the soul of Alexandrine, and in her deepest consciousness she vowed to have revenge. Neither the occasion nor the method was as yet clear to her, but she pursed her lips ominously, and bided her time.