"Make a vow, then, to the Lord, that by the memory of your mother you will fulfil every duty that presents itself to you in life, until God has spoken the word that will call you to Himself."

"I swear, by the memory of my mother, that I will live a life of resignation and of usefulness until God in His mercy, shall free me from my prison."

"Right, dear unhappy child," said the father, smoothing, with his trembling hands, the soft hair that lay on either side of her forehead. "May God reward thee, and in His infinite mercy shorten thy sufferings!"

He stooped, and kissing her pale brow, made the sign of the cross above her kneeling figure. Then, with eyes blinded by tears, he slowly retreated to his own room, where he threw himself upon his knees and prayed that God would give strength to them both to bear the cross of that dreadful secret.

Isabella, too, remained alone. In feverish longing for death, she sat, neither hearing the voices of her friends who begged for admission, nor the pleadings of her brother, who besought her to see him and give him one last embrace. Through the long night that followed, still kneeling, she prayed. When the sun rose, she murmured, "To-morrow!" and through the day her fancy wandered to the verge of madness. Sometimes visions of beckoning angels swarmed around her; then they fled, and in their places stood a hideous skeleton, that, with ghastly smile, held out his fleshless hand, and strove to clasp hers.

Again the night set in, and the next morning at break of day, Isabella rose from her knees, and, hailing the rising sun, cried exultingly, "To-day!"

Exhausted from fasting and such long vigils, her head reeled, and she staggered to her couch. A cold shudder crept over her limbs; all was dark as night about her; she tried to clasp her hands in prayer and could not, for they were numb and powerless. "This is welcome death!" thought she, and her lips parted with a happy smile. Her head fell backward on the pillow, and her senses fled.

CHAPTER XIV.

THE AMBASSADOR EXTRAORDINARY.

The Princess Isabella opened her eyes, and in their dark and lustrous depths shone returning reason; they glared no more with fever-madness, but were sadder and sweeter than ever.