It neuer rests, till it haue wrought his finall bane.
For that beastes teeth, which wounded you tofore, ix
Are so exceeding venemous and keene,
Made all of rusty yron, ranckling sore,
That where they bite, it booteth not to weene
With salue, or antidote, or other mene
It euer to amend: ne maruaile ought;
For that same beast was bred of hellish strene,
And long in darksome Stygian den vpbrought,
Begot of foule Echidna, as in bookes is taught.