‘My doors ward thee,
Wölfing, to-day;
Till the dawn shelter they show;
A flawless sword
Will befit thee at sunrise,
By day be ready for fight,
And pay thy debt for the dead.’

Then Hunding angrily withdraws with his wife, taking his weapons with him, and muttering dark threats, which fill his guest's heart with nameless fear. Left alone, Siegmund bitterly mourns his lack of weapons, for he fears lest he may be treacherously attacked by his foe, and in his sorrow he reproaches his father, who had repeatedly told him that he would find a sword ready to his hand in case of direst need.

‘A sword,—so promised my father—
In sorest need I should find—
Weaponless falling
In the house of the foe,
Here in pledge
To his wrath I am held.’

While he is brooding thus over his misfortunes, the flames on the hearth flicker and burn brighter. Suddenly their light glints upon the hilt of a sword driven deep in the bole of the mighty oak, and, reassured by the thought that he has a weapon within reach, Siegmund disposes himself to sleep.

The night wears on. The fire flickers and dies out. The deep silence is broken only by Siegmund's peaceful breathing, when the door noiselessly opens, and Sieglinde, all dressed in white, steals into the room. She glides up to the sleeping guest and gently rouses him, bidding him escape while her husband is still sound asleep under the influence of an opiate which she has secretly administered:—

‘It is I; behold what I say!
In heedless sleep is Hunding,
I set him a drink for his dreams,
The night for thy safety thou needest.’

Leading him to the oak, she then points out the sword, telling him it was driven into the very heart of the tree by a one-eyed stranger. He had come into the hall on her wedding day, and had declared that none but the mortal for whom the gods intended the weapon would ever be able to pull it out. She then goes on to describe how many strong men have tried to withdraw it, and warmly declares it must have been intended for him who had so generously striven to protect a helpless maiden. Her tender solicitude fills the poor outcast's famished heart with such love and joy that he clasps her to his breast, and, the door swinging noiselessly open to admit a flood of silvery moonbeams, they join in the marvellous duet known as the ‘Spring Song.’

As they gaze enraptured upon each other, they too perceive the strong resemblance which has so struck Hunding, but still fail to recognize each other as near of kin. To save Sieglinde from her distasteful compulsory marriage, Siegmund now consents to fly, providing she will accompany him, vowing to protect her till death with the sword which he easily draws from the oak, and which he declares he knows his father must have placed there, as he recognizes him in the description which Sieglinde had given of the stranger:—

‘Siegmund the Volsung,
Seest thou beside thee!
For bridal gift
He brings thee this sword.
He woos with the blade
The blissfullest wife.
From the house of the foe
He hies with thee.
Forth from here
Follow him far,
Hence to the laughing
House of the Spring,
Where Nothung the sword defends thee,
Where Siegmund infolds thee in love!’

This passionate appeal entirely sweeps away Sieglinde's last scruples; she yields rapturously to his wooing, and they steal away softly, hand in hand, to go and seek their happiness out in the wide world. Hunding, upon awaking on the morrow, discovers the treachery of his guest and the desertion of his wife. Almost beside himself with fury, he prepares to overtake and punish the guilty pair.