The Pillar of Light

After the fall of Ringwall, Pentamuria lies in ruins.
The magic of the elements is fading away and the realm of fire begins a merciless conquest. In this situation, it is up to Nill, the last Archmage and possible Changer, to sort out the mess and stop Sergor-Don. 
But the king of the fire realm is not the only threat. 
A new, incredibly powerful magician who calls himself the "Pillar of Light", along with his followers, demands dominion over Pentamuria and forces Nill to decide whether to fight not only for his own life but for the fate of the whole world.