She told how Agnes had been secretly poisoned by the prioress. The mob, mad with indignation, rushed to the convent determined to destroy it. Lorenzo and the officers hastened to endeavour to do what they could to save the convent and the terrified nuns who had taken refuge there.

Antonia's heart throbbed, her eyes opened; she raised herself and cast a wild look around her. Her clothing was a shroud; she lay in a coffin among other coffins in a damp and hideous vault. Confronting her with a lantern in his hand, and eyeing her greedily, stood Ambrosio.

"Where am I?" she said abruptly. "How came I here? Let me go!"

"Why these terrors, Antonia?" replied the abbot. "What fear you from me--from one who adores you? You are imagined dead; society is for ever lost to you. You are absolutely in my power!"

She screamed, and strove to escape; he clutched at her and struggled to detain her. Suddenly Matilda entered in haste.

"The mob has set fire to the convent," she said to Ambrosio, "and the abbey is in danger. Don Lorenzo and the officers are searching the vaults. You cannot escape; you must remain here. They may not, perhaps, enter this vault."

Antonia heard that rescue was at hand.

"Help! help!" she screamed, and ran out of the vault. The abbot pursued her in desperation; he caught her; he could not stifle her cries. Frantic in his desire to escape, he grasped Matilda's dagger, plunged it twice in the bosom of Antonia, and fled back to the vault. It was too late he had been seen, the glare of torches filled the vault, and Ambrosio and Matilda were seized and bound by the officers of the Inquisition.

Meanwhile, Lorenzo, running to and fro, had flashed his lantern upon a creature so wretched, so emaciated, that he doubted to think her woman. He stopped petrified with horror.

"Two days, and yet no food!" she moaned. "No hope, no comfort!" Suddenly she looked up and addressed him.