when they get the signal. We shall fire a gun, hoist the flag, and light a bonfire on the keep, so that they may see the smoke by day or the fire by night. Tell Jean Bouvard to come to me." "There is trouble afoot, Jean, and at any moment we may be attacked. Place two men-at-arms on each of the roads to St. Omer, St. Pol, and Bethune. Post them yourself at the highest points you can find near our boundary. By each have a pile of faggots, well smeared with pitch, and have another pile ready on the keep, and a watch always stationed there. He is to light it at once when he sees smoke or fire from either of the three points. Let the men at the outposts be relieved every four hours. They must, of course, be mounted. Let one of the two remain by the faggots, and let the other ride three or four miles in advance, and so post himself as to see a long distance down the road. "If he sees a force advancing he must gallop back at full speed to his comrade, and light the fire. Have a gun always loaded on the keep, and have a brazier burning hard by, with an iron in it, so that the piece may be fired the instant smoke is seen. It might be two or three minutes before the beacon would give out smoke enough to be noticed, and every minute may be of the greatest importance to the vassals. As soon as you return from setting the posts see that everything is in readiness here. I myself will make sure that the drawbridge works easily and the portcullis runs freely in its groove. I have already sent off John Harpen to warn the tenants, and doubtless many of them will be in this afternoon. Send Pierre with four men, and tell them to drive up a number of the cattle from the marshes. They need not trouble to hunt them all up today. Let them bring the principal herd, the others we will fetch in to-morrow, or let them range where they are until we have further news." In a few minutes the castle resounded with the din of preparations under the superintendence of Sir Eustace. The men-at-arms and archers carried up stones from the great pile that had been collected in the court-yard in readiness, to the various points on the walls that would be most exposed to assault. Others were employed in fixing barricades in the court-yard at the rear for the reception of the herd of half-wild cattle. The water was turned from the little rivulet running down to the Somme into the moat. Two or three bullocks were killed to