Myths of the Norsemen: From the Eddas and Sagas

The other gods who took part in the fray, and all the Einheriar having now perished, Surtr suddenly flung his fiery brands over heaven, earth, and the nine kingdoms of Hel. The raging flames enveloped the massive stem of the world ash Yggdrasil, and reached the golden palaces of the gods, which were utterly consumed. The vegetation upon earth was likewise destroyed, and the fervent heat made all the waters seethe and boil.

The great conflagration raged fiercely until everything was consumed, when the earth, blackened and scarred, slowly sank beneath the boiling waves of the sea. Ragnarok had indeed come; the world tragedy was over, the divine actors were slain, and chaos seemed to have resumed its former sway. But as in a play, after the principals are slain and the curtain has fallen, the audience still looks for the favourites to appear and make their bow, so the ancient Northern races fancied that, all evil having perished in Surtr’s flames, from the general ruin goodness would rise, to resume its sway over the earth, and that some of the gods would return to dwell in heaven for ever.