Scarce was it built, when, with eyes lurid-glaring,
Three dragons leapt to scale its ramparts high.
Now twain of these fell back, and suddenly
Died, writhing as in impotent despairing:
But the third leapt in with fierce battle-cry.
That portent Phoebus pondered; then spake he:
“Aiakus, where thine hands reared this stone wonder,
There breached and taken Pergamus shall be,
As this sign sent down by the Lord of Thunder,
Zeus, Kronos’ Son, revealeth unto me.