Re-enter Ariel, invisible.
Ari. My master through his art foresees the danger
That you, his friend, are in; and sends me forth—
For else his project dies—to keep them living.
[Sings in Gonzalo's ear.
While you here do snoring lie,
Open-eyed conspiracy
His time doth take.
If of life you keep a care,
Shake off slumber, and beware: