Now herkeneth with a gode entencioun,
For now wol I gon streight to my matere,
In whiche ye may the double sorwes here
Of Troilus, in loving of Criseyde, 55
And how that she forsook him er she deyde.

It is wel wist, how that the Grekes stronge
In armes with a thousand shippes wente
To Troyewardes, and the citee longe
Assegeden neigh ten yeer er they stente, 60
And, in diverse wyse and oon entente,
The ravisshing to wreken of Eleyne,
By Paris doon, they wroughten al hir peyne.

Now fil it so, that in the toun ther was
Dwellinge a lord of greet auctoritee, 65
A gret devyn that cleped was Calkas,
That in science so expert was, that he
Knew wel that Troye sholde destroyed be,
By answere of his god, that highte thus,
Daun Phebus or Apollo Delphicus. 70

So whan this Calkas knew by calculinge,
And eek by answere of this Appollo,
That Grekes sholden swich a peple bringe,
Thorugh which that Troye moste been for-do,
He caste anoon out of the toun to go; 75
For wel wiste he, by sort, that Troye sholde
Destroyed ben, ye, wolde who-so nolde.