"That voice--it is strange to me, yet--it is like some remembered voice," Fidelio said to herself, and she clasped her hands upon her heart, because it seemed to beat so loudly that Rocco might hear it. While she wavered between hope and fear, Don Pizarro entered the dungeon. He had come at last for his revenge. "Now, thou dog," he said to the prisoner, "prepare to die. But before you die, you are to know to whom you owe the deed." At that he threw off his cloak and showed himself to be Pizarro. "It is Pizarro whom thou hast insulted. It is he who shall kill thee." "Do not think I fear a murderer," Florestan replied, with what heroism his weakness would permit. At that Pizarro made a lunge at him with the knife, but Fidelio threw herself in front of him, suddenly recognizing him as he spoke to Pizarro. "Thou shalt not kill him, unless thou kill his wife as well," she screamed. Rocco, Florestan and Pizarro all cried out in amazement. "Wife!" Florestan clasped her weakly to his heart. Pizarro rushed at Fidelio, becoming frantic with rage. He hurled her away and shouted: "No woman shall frighten me! Away with ye! The man shall die." Instantly, Fidelio drew a pistol and pointed it at the murderer. "If he is to die, you shall die also," she cried, whereupon Rocco shouted in fright, since it was a dreadful thing to try conclusions with the governor of the prison. Pizarro himself drew back with fear. Then a fanfare of trumpets was heard, announcing the arrival of Fernando, the Minister. "Hark!" Pizarro cried. "I am undone! It is Fernando!" The assassin began to tremble. But Florestan and Fidelio knew that liberty was near. One word of the truth to the Minister, one word that should tell him of the governor's awful cruelty for a personal revenge, would set Florestan free and bring punishment to Pizarro. Then Jaquino hurried in: "Come, come, quick! The Minister and his suite are at the gates." "Thank God," said the kind-hearted jailer, under his breath. "The man is surely saved now. We're coming, my lad, we're coming," he answered. "Let the men come down and bear torches before Don Pizarro. He cannot find his way out." Rocco's voice was trembling with gladness, Florestan was almost fainting with weakness because of the sudden joy that had come to him. Fidelio was praying to heaven in gratitude, while Don Pizarro was horrified at the thought of what his punishment would be. The jailer and Don Pizarro ascended, and soon Fernando ordered all the prisoners of the fortress brought before him. He had come to investigate the doings of the governor who had long been known as a great tyrant. When the unhappy men, who had been abused by starving and confinement in underground cells, stood before him, the Minister's heart was sorely touched, and Don Pizarro was more and more afraid. Presently, Rocco fearlessly brought Fidelio and Don Florestan in front of Fernando.