"Good. Now you shall show me where I can find the key of this prison."

"Indeed, sir, I was not his jailer."

"Still you may find the key. There is little secrecy about the jailer's office. You must go quickly, for this is not the sort of day on which a man has much patience to spare."

The key was found in the jailer's empty room, and when Herrick had taken the man back to the guard-room he mounted the spiral staircase alone. He paused for an instant before putting the key into the lock, and it was evident that his thoughts had suddenly wandered.

"At least one task I have set myself is accomplished," he murmured as he opened the heavy door.

There presently galloped across the ford the old noble and those who had remained to cover the secret night march of the army. They had not escaped unscathed, for in the early morning they had been fired at, and half a dozen men had fallen by the watchfires they had tended. No opposition met the little band at the water's edge, for the flag was already flying from the tower at Larne. Their coming, however, heralded the speedy return of the main body of the enemy, and before nightfall the guns were speaking again.

The struggle was not at an end. With the greater part of their stores lost, the foe were in a precarious position, and desperate attempts were made to recapture the castle. Time had become of consequence to them. Herrick recognized that the castle was not strong enough to stand a siege, and his first care was to prevent the besiegers taking up any strong position. Sorties were constantly made, and there were skirmishes which were almost of sufficient importance to be called battles. In these, ever fighting by his side, was the prisoner Herrick had released from the tower. When he was not fighting he kept himself in the background, and few knew, or cared, who he was. Each man's time was too fully occupied to indulge in idle speculation.

In these skirmishes Fortune's favors were distributed fairly equally. Often, Herrick did not accomplish all he meant to do, but he had one real advantage: the chief success of the struggle was his, and his enemies were disheartened. Dissensions, too, had grown up in their ranks, and many declared that they had been deceived by the information sent them from Vayenne. Instead of the easy task they had been led to expect, they had been vigorously attacked, and all the fighting had taken place on their side of the frontier. They began to talk of peace, and the first flag of truce had been raised before Mercier had left for Vayenne. The papers he brought to Father Bertrand declared that peace was imminent, and indeed terms had been agreed upon by the time the papers came into the priest's hands, and Herrick was leading the larger portion of his victorious army back to Vayenne.

The camp had been pitched for the night at the juncture of the Passey road with the high road from Lame. No messengers had been sent forward to the city. Herrick intended to return without warning, and if treachery were within the gates he could easily crush it now. Some of the nobles had left him, returning to their own estates, but it was with a promise to come to Vayenne within a week. They understood the Duke much better than they had done, and Herrick's popularity was established beyond all question.

With early morning came another parting. A small body of men separated from the rest and went slowly along the Passey road. The man who had been released from the tower at Larne lingered beside Herrick for a few moments, talking earnestly, then he saluted, and rode after his companions.