Where'er a casque that suits this sword is found,
With perils is thy daughter compass'd round;
Alfonso's blood alone can save the maid,
And quiet a long restless Prince's shade.
Hearing on his return that Isabella was at Otranto in the hands of Manfred, Frederic had travelled thither, and on arriving had beheld the miraculous casque that fulfilled the lines on the sword-blade.
Manfred, on entering the castle after the search, beheld Theodore in his armour. He started in an agony of terror and amazement.
"Ha!" he cried, "thou dreadful spectre, what art thou?"
"My dearest lord," said Hippolita, clasping him in her arms, "what is it you see?"
"What, is not that Alfonso? Dost thou not see him?"
"This, my lord," said Hippolita, "is Theodore."
"Theodore!" said Manfred, striking his forehead. "But how comes he here?"
"I believe," answered Hippolita, "he went in search of Isabella."
"Isabella!" cried Manfred, relapsing into jealous rage. "Has this youth been brought into my castle to insult me?"