The Veil Boss Locations & Summon Triggers
Check your active quest milestone before heading into the deeper maze. Encounters like Puppeteer appear at night, while Stormcaller and Smelter Demon require shattering Thunder Quartz or activating the Smoldering Horn in the deep Veil at night. Meanwhile, Festering Wound requires placing Festered Meat at a ritual altar. Matching your materials to the encounter avoids long trips with empty hands.
| Boss Encounter | Spawn Location & Summon Trigger | Recommended Next Step |
|---|---|---|
| Puppeteer | Crumbling Ring arena; spawns during the night cycle | Learn the Puppeteer night route and fight |
| Stormcaller | Shatter Thunder Quartz in the deep Veil at night | Learn Thunder Quartz route and summon |
| Smelter Demon | Activate the Smoldering Horn in the deep Veil at night | Deliver Fire Essence and summon Smelter Demon |
| Festering Wound | Ritual altar using Festered Meat | Master Festering Wound cues to clear Disease Era |
| The Cell of Life | Encounter near The Marrow and The Final Descent | Push progression beyond Disease Era into The Pale |
Bosses Along the Main Quest
Let your active quest objective set your route. In the Disease Era, your path leads through The Scorch Basin and altar objectives before culminating in the Festering Wound confrontation. If you want an optional side challenge, head to Crumbling Ring at night for Puppeteer, but focus on the main quest milestones to unlock deeper zones.

Defeating Festering Wound marks the transition past the Disease Era toward The Pale and the Primordial Era. Later footage shows The Cell of Life around The Marrow and The Final Descent landmarks, representing subsequent milestones rather than the end of the game.
Summons and Entry Requirements
- Confirm night conditions: Puppeteer spawns at night and despawns by dawn, while Stormcaller and Smelter Demon require nighttime in the deep Veil.
- Use the correct summon action: Activate the Smoldering Horn or shatter Thunder Quartz deep in the Veil at night; do not confuse item triggers with altar placements.
- Pack Sanity restoration and healing draughts to survive maze travel and extended boss phases.
- Verify weapon requirements: Legendary weapons require weapon mastery before you can equip them.
- Stay active in group fights: Boss and mob-event chests require reaching at least 20% contribution to open and loot.
Smoldering Horn Summon
Trade Fire Essence to Bobby in Echohold for the Smoldering Horn to challenge Smelter Demon in the deep Veil at night.
Thunder Quartz Summon
Obtain Thunder Quartz from Vesper and shatter it deep in the Veil at night to challenge Stormcaller.
Festered Meat Offering
Loot Festered Meat from Hiveling Titan and interact with the Maw Of Decay altar for Festering Wound.
The Veil Boss Battle Guides

Puppeteer: Crumbling Ring Night Fight
Take the broken-carriage maze route to Crumbling Ring and kite Puppeteer with ranged attacks before dawn.
Disease Era finaleFestering Wound: Attack Cues & Dodge Timing
Read green flashes, time weaves on blue head tilts, and double-jump the invisible ground slam to finish the Disease Era.
The Bell Boss Guide
Complete The Fourth Chime questline, navigate The Pale, and defeat The Bell in Forsaken Heaven.
Smelter Demon: Smoldering Horn Quest Encounter
After completing Bobby's Terms in Echohold, Bobby rewards you with the Smoldering Horn. Verify that the horn appears in your inventory and check that your Main Quest HUD displays the objective to defeat Smelter Demon (0/1).
Travel deep into the Veil during the night cycle and activate the Smoldering Horn to trigger the encounter. After defeating Smelter Demon, check whether your quest HUD advances to the next objective, check your inventory and nearby chest, and claim rewards only if you meet standard chest requirements (such as minimum contribution).
Boss Rewards & Chest Eligibility
Under the September 6 update, opening boss and mob-event chests requires at least 20% combat contribution. The announcement sets this threshold without publishing an exact calculation formula, so stay active throughout the fight rather than hanging back.
High-tier drops include legendary items like The Dice from Puppeteer. Legendary weapons require completing the matching Weapon Mastery before you can equip them. Plan your Melee, Casting, or Summoning training alongside your boss hunts.
Quick answers
What is the difference between Smelter Demon, Stormcaller, and Festering Wound summons?
Smelter Demon is summoned by activating the Smoldering Horn deep in the Veil at night, Stormcaller requires shattering Thunder Quartz at night, and Festering Wound requires placing Festered Meat at the Maw of Decay ritual altar. These item triggers are separate combat mechanics and do not involve character Summoning Mastery.
Does summoning Smelter Demon require Summoning Mastery?
No. Summoning Mastery is strictly a requirement for equipping Legendary summoning weapons. Spawning Smelter Demon requires completing Bobby's Terms for the Smoldering Horn and activating it in the deep Veil at night as required by the Main Quest.