Ore. Temptation. The Tablets of the Four

After defeating Nahar’s army, Ereey sets out together with his brother-in-arms Vikard, the light mage Isterro, and Colonel Gont to search for Ruda—the main artifact of the world that fell onto the Light side.
Ruda caused an earthquake, destroyed fortresses and cities, and diverted Aler—the mighty river Khviro—from its usual course. And if it isn’t returned to the Dark, who knows what new troubles might fall upon the familiar world.
Ereey’s path leads to the Void Mountains, to an ancient fortress built by dark mages. What awaits him on the way? For in the fortress, powerful enemies lie in wait; they lure him into a trap and threaten those who have become dear to Ereey—the dead mage with a half-dead heart.
On the fortress wall stands Laina Fe, a priestess of Vikki who is a mage in dreams! She beckons with impossible happiness and whispers about love. Once he saved her. How will the priestess repay the dark mage?
And can Ereey—an immortal degenerate, as the crowd often shouts after him—find his true love? What trials will he have to pass through to stand on equal terms with his teacher?