Some power unseen directed her to a safe path, and in a short time she obtained the lock of wool, and presented it to Venus. […] Medusa happened to be asleep when Perseus arrived; but he was afraid to look at her, on account of the petrifying power of her ugliness. […] “Thou art come to my relief, gracious power,” she exclaimed. […] Jupiter, pitying Io, sent Mercury to deliver her from the power of Argus. […] When Mercury found the sharp-sighted Argus in his power, he drew forth a cemetery which he had concealed under his cloak, and with one blow severed his head from his body.