BossesStormcallerObtain Thunder Quartz from Vesper and shatter it deep in the Veil at night to spawn Stormcaller. [1]See alsoThunderNPCsVesperNPCsDisease Era WalkthroughQuestsSky IslandLocationsColBossesFestering WoundBossesView all Bosses entriesReferencesCommunity documentation; not tested in-game. Patch not stated. Sources checked 2026-09-25.theveilwiki.com: /guides/progressionBossesColFestering WoundFirst quest bossGoblin WarlockHeadless BehemothHighling TitanHiveling TitanMega BossPuppeteerSmelter DemonThe BeholderThe BellThe Cell Of LifeThe Crowned NothingThe Festering WoundThe Headless BehemothThe MasqueradeThe PuppeteerThe StormcallerThe Unfinished