(Exeunt Duke and Duchess into Grand Ducal Palace. As soon as
they have disappeared, Luiz and Casilda rush to each other's
arms.)

RECITATIVE AND DUET--CASILDA AND LUIZ.

O rapture, when alone together
Two loving hearts and those that bear them
May join in temporary tether,
Though Fate apart should rudely tear them.

CAS. Necessity, Invention's mother,
Compelled me to a course of feigning--
But, left alone with one another,
I will atone for my disdaining!

AIR

CAS. Ah, well-beloved,
Mine angry frown
Is but a gown
That serves to dress
My gentleness!

LUIZ. Ah, well-beloved,
Thy cold disdain,
It gives no pain--
'Tis mercy, played
In masquerade!