Once Upon a Time, it was thought that all the Once Upon a Times in existence had run out. However, those in the know insisted that one remained, and that it was embedded in permafrost deep in the icy North where only massively bearded Vikings with prodigiously hairy balls dared to tread.
Such a fellow had stashed one in his freezer, mistaking it for a Happily Ever After that he one day planned to pull out and savour over a celebratory ale at his wedding feast.
But this is hearsay. You can choose to believe it or not. The End.