The tenth generation is always the last.
They herald the Kali Yuga, the coming of the end cycle. No human being has ever been able to interrupt this cycle and no human being ever will as long as mankind themselves remains the same creature.
This is the time where the survivalist, the vault dweller, excels. Carl Jung described them as the anti-hero, the protagonist who is the vessel that carries forward the best values of the civilization that sinks into flames.
In all the ancient mosaics at the far right corner there is always the little group fleeing the destruction whether on foot, in a little boat or else all descending into a hole in the earth. Behind them there is only fire, darkness and evil. The feeling of transition is what draws the observer into such vistas but only if they identify with the people depicted as surviving this Ragnarok.