Revelations 17

12 “The ten horns you saw are ten kings who have not yet received a kingdom, but who for one hour will receive authority as kings along with the beast.
This verse empathises on worldly power and it's ineffectiveness against God and those who suffer for Him. Their reign will only last for one hour which I'd assume is not literal and rather referred as brief/temporary in contrast to eternity. As amazing as Game of Thrones is or Lord of the Rings, those critically acclaimed series of art will not last in the long run, I should not be putting so much worth or attention in it but rather concentrate on building up the kingdom.