The fortress was a maelstrom of activity, the clash of steel and arcane energy echoing through its stone halls. The defenders, a mix of seasoned warriors and mages, fought valiantly against the relentless assault of the Abyss's forces. The crystal's power provided a shimmering barrier, pushing back the dark waves of energy and granting the defenders a crucial edge.
Elara paced along the battlements, her eyes scanning the chaotic battlefield below. The Abyss's minions surged forward like a dark tide, their presence an overwhelming force that sought to breach the fortress's defenses. Despite the strength of the crystal's wards, the relentless assault was wearing down their energy.