World Gone Mad

What was I saying? It's as if a haze obscures my mind ... No, |n, my considerable magics would only lend fuel to that hilltop blaze. Rather, we must purify the flames, dissolving the chaos energies that create the doorways through which those creatures travel. Salamanders! Yes ... A creature commonly misunderstood. The beast's core is made not of flame, but impenetrable frost. A scale from the mightiest of salamanders might withstand the fire's heat long enough for my reagents to purify the site.

Defeat the beast known as Phlogiston where it basks on the banks of the burning lake. Rip from the monster's crown a single scale. Then use the scale in your inventory in order to combine it with Barnabas's Reagents.