[Exit.]

Amphitr.: O god of gods, O ruler of the skies,

Whose hurtling bolts make mortals quake with fear,

Check thou the impious hand of this dire king.

Why do I vainly importune the gods?

Where'er thou art, hear thou and answer, son.520

But why this sudden rocking of the shrine?

Why groans the earth? Far in her lowest hold

A crashing deep resounds. Our prayer is heard!

It is, it is the step of Hercules!