“It does not become you to use threats,” returned Vandeleur. “Two can play at that. My brother is here in Paris; the police are on the alert; and if you persist in wearying me with your caterwauling, I will arrange a little astonishment for you, Mr. Rolles. But mine shall be once and for all. Do you understand, or would you prefer me to tell it you in Hebrew? There is an end to all things, and you have come to the end of my patience. Tuesday, at seven; not a day, not an hour sooner, not the least part of a second, if it were to save your life. And if you do not choose to wait, you may go to the bottomless pit for me, and welcome.” And so saying, the Dictator arose from the bench, and marched off in the direction of Montmartre, shaking his head and swinging his cane with a most furious air; while his companion remained where he was, in an attitude of great dejection. Francis was at the pitch of surprise and horror; his sentiments had been shocked to the last degree; the hopeful tenderness with which he had taken his place upon the bench was transformed into repulsion and despair; old Mr. Scrymgeour, he reflected, was a far more kindly and creditable parent than this dangerous and violent intriguer; but he retained his presence of mind, and suffered not a moment to elapse before he was on the trail of the Dictator. That gentleman’s fury carried him forward at a brisk pace, and he was so completely occupied in his angry thoughts that he never so much as cast a look behind him till he reached his own door. His house stood high up in the Rue Lepic, commanding a view of all Paris and enjoying the pure air of the heights. It was two storeys high, with green blinds and shutters; and all the windows looking on the street were hermetically closed. Tops of trees showed over the high garden wall, and the wall was protected by _chevaux-de-frise_. The Dictator paused a moment while he searched his pocket for a key; and then, opening a gate, disappeared within the enclosure. Francis looked about him; the neighbourhood was very lonely, the house isolated in its garden. It seemed as if his observation must here come to an abrupt end. A second glance, however, showed him a tall house next door presenting a gable to the garden, and in this gable a single window. He passed to the front and saw a ticket offering unfurnished lodgings by the month; and, on inquiry, the room which commanded the Dictator’s garden proved to be one of those to let. Francis did not hesitate a moment; he took the room, paid an advance upon the rent, and returned to his hotel to seek his baggage. The old man with the sabre-cut might or might not be his father; he might or he might not be upon the true scent; but he was certainly on the edge of an exciting mystery, and he promised himself that he would not relax his observation until he had got to the bottom of the secret.