Getting to know 5th Edition
Considered the most destructive war in recorded history, it began with an army from the Sumaan Empire marching on Stoneshore. At first their forces were repelled by the armies of Soris, but more forces were sent from the south until the northern kingdom was forced to call on its neighbors to aid in repelling their mutual foe. The forces of the High Thane, Gauld and Quendayar all responded to the call and marched to aid in the fight, but while en route, the Elfves betrayed their allies, killing the High Thane and delayed the Dwarfves from arriving at the battle. It is considered that the betrayal was fueled by resentment from Celionor's death in the God War. Massively outnumbered and now lacking most of their allies, the Holy King of Soris was killed in battle holding Foolshope.
Seeing one of their allies turning against them and the other two considerably weakened by the loss of their rulers, Gauld's king King Eorin the Damned despaired, thinking the war was lost and that his kingdom would fall under the boot of the Sumaan Empire. It was while in this despair that Mauric came to his court, hinting at how the king could obtain the power needed to win this war. At first the king and his court were suspicious of his offer, but as the war grew more dire and his small displays of might grew larger, they eventually gave in. At first, only a few people engaged in the rituals that Mauric shared with them, making dark pacts with fiendish creatures, but it ultimately escalated to the point where hundreds of prisoners would be sacrificed to draw more of the creatures into the world and focus their power on any that was deemed an enemy. With Mauric's knowledge, they crafted an obelisk that channeled such infernal might that the northern portion of the Sumaan Empire was reduced to a charred wasteland. The empire, shocked at the display of power, withdrew from the war and never returned, letting the ruined land serve as a buffer between them and the now-corrupted north.
When the source of Gauld's newfound might was discovered by their allies, they withdrew in horror, breaking off all alliances with the kingdom. King Eorin, convinced that they were going to turn on his kingdom, turned his might on them first, blasting Klefft as a warning shot before sending messengers demanding they submit to his rule or face the same fate. By now, he and most of the court were mad with power, their souls fully corrupted by the darkness they had turned to in desperation. While the rest of Stoneshore still reeled in shock at Gauld's corruption and might, Eorin began to execute key members of his nobility, convinced they were attempting to betray him too. In response, those nobles fought back with their own powers. In nearly a fortnight, the obelisk was activated, its dark power focused on Gauld itself. Cities were destroyed in a rain of hellfire, the land itself was broken and ripped upwards to create the Broken Crags. In that instant, Gauld ceased to be.