Trolls of all sizes surged into action, their hulking forms moving with surprising speed and coordination. Blacksmiths, their forges already glowing hot, plunged thick iron into roaring flames, hammering out crude yet formidable weapons. The sound of metal striking metal echoed like a relentless drumbeat, marking the onset of their preparations. Sparks flew into the air, lighting up the cavern with brief, fiery flares as axes, swords, and maces were hastily sharpened to a deadly edge.