Ember of Understanding: Ifrit's True Evolution

During the short return trip, Ifrit recounted his seven-year adventure and how he had defeated armies and razed territories. But the carnage had a deeper goal.

Without surprise, many lusted over the volcano's abundant fire energy, but none had ever benefited from it. How could they when someone already owned the place?

According to Ifrit, an ancient fire giant, slightly weaker than Hrimgar but no less threatening, had claimed the place. Though visitors didn't garner any reaction, the moment he had tried to absorb the energy, the giant had emerged in a sea of molten magma.

Beaten half-dead, forced to flee, and his illusions of power shattered, Ifrit returned to the most basic and barbaric method of improvement: slaughter. 

Just like that, he had drowned Muspelheim in his own flames, the fallen eldjötnars and beasts fueling his rise until he finally evolved into a djinn sultan.