Dante Alighiere, PURGATORIO, Canto VIII

Illustration by Salvador Dali
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Two angels, with flaming swords broken at the point, descend to keep watch over the valley, into which Virgil and Dante entering by desire of Sordello, our Poet meets with joy the spirit of Nino, the judge of Gallura, one who was well known to him. Meantime three exceedingly bright stars appear near the pole, and a serpent creeps subtly into the valley, but flees at hearing the approach of those angelic guards. Lastly, Conrad Malaspina predicts to our Poet his future banishment.