Diablo 4’sSeason of the Construct has added a new companion for players to customize and create builds around. The Seneschal is a robotic spider pet that can be highly modified to fulfill any role, ranging from melee tank to support. It’s a highly versatile companion that most players will want to unlock.

But before you can use this spider companion yourself, you’ll first need to complete this season’s new questline. Complete the campaign, visit Kehjistan, and get comfortable avoiding a myriad of deadly traps. This guide will cover how to complete the seasonal questline for Season of the Construct, but before we get started, let’s first cover how you can start the “A Suppurated Wound” quest.

Diablo 4 A Suppurated Wound Quest Location

How To Start A Suppurated Wound

“A Suppurated Wound” is the first quest in Season of the Construct’s questline.This quest automatically unlocks upon completing the campaign.If you skip the campaign, you can access this quest immediately after creating your character.The quest itself starts in Kehjistan within the Gae Kul hub town.

The quest itself begins with you investigating a group of disgruntled locals near the northern end of town. One of the locals, Otseg, will mention ancient vaults might be the source of the strange runes you find in town. You’ll need tomake your way to the Unearthed Vault in Amber Sands, Kehjistan.Head inside the glowing fissure and reach the end of the dungeon. Use the gateway to reach the next zone.

Diablo 4 A Suppurated Wound Vault Location

This gateway leads to theAbandoned Foyer, a small vault dungeon that is filled with traps and other hazards. Watch out for active floor plate traps while exploring the dungeon. Navigate to the end of the dungeon to find the source of the demonic threat.

The Yshari

You will find yourself at the entrance to The Gatehall, this season’s new hub area. But before you can lay claim to this zone, you’ll need toclear out the demonic forcesthat reside here. The last room in this dungeon will contain a boss namedAyuzhan, a Possessed Sorcerer.They will spawn multiple demons that you must kill to progress the fight. Once you’ve slain all the demons, speak to the newly freed sorcerer.

Using The SeneschalConstruct

Ayuzhan will give thanks and provide you with theSeneschal.This is a spider construct that acts as this season’s added progression mechanic. You may augment the construct in your inventory menu on the leftmost tab above your inventory. The companion will permanently follow you for the rest of the season, fighting by your side at all times.

In this tab, you can configure your companion’s attacks.Governing Stones are skills your companion will use, and Tuning Stones allow you to augment that skill’s behavior.If you’ve played Path of Exile, this is identical to skill gems and support gems.A Governing Stone may be affected by three Tuning Stones at a time.You can expand your stone collection by completing Season of the Construct content, including this questline.

Diablo 4 A Suppurated Wound Vault Entrance

Stone Tags

The top of every Seneschal stone description is a list of tags that denote how the stone works. A Tuning Stone must share at least one tag on your equipped Governing Stone to have any effect.

The Ennead

Now that you’re equipped with a construct, it is time to root out the source of this demonic threat. Ayuzhan will direct you toThe Library, another dungeon that’s riddled with traps. Instead of damaging floor plates, this dungeon contains a hallway that will erupt in flame every few seconds.You must find a small gap in the wall to avoid the trap. The wave won’t immediately kill you, but it does heavy damage.

Make it to the end of the hall and deactivate the trap for Ayuzhan. He’ll direct you to Zoltun’s Study near the center of the dungeon—it’s located next to a health fountain. Get inside and look for any evidence. Once done, use the gateway in the adjacent room to return to The Gatehall.

Diablo 4 A Suppurated Wound Vault Map

A Body Stolen, A Body Made

This quest is identical to the last. Clear the entrance to the Vault of Copper, avoid the myriad of traps inside, and return to The Gatehall when you’re finished.

Drums Of The Vault

“Drums of the Vault” introduces you to this season’s new world content. This quest requires you togather three cores from obelisks scattered across Sanctuary.Current obelisk locations should be marked on your map for this step. Head to the obelisk, clear out the demons, then open the obelisk to gather a core. With three cores handy, interact with a nearby brazier to spawn an Elite monster. Killing them will drop aPearl of Warding, an item used to open chests in Vault Dungeons.

With three cores gathered, head back to The Gatehalls and interact with the brazier next to Ayzuhan. You’ll need to trade one Peal of Warding for a new Tuning Stone for your construct companion. Open the reward cache in your inventory, modify your Seneschal, then start the next quest.

Diablo 4 A Suppurated Wound Vault Traps

The Smothered Ache

Yet another vault needs to be explored to further upgrade your Seneschal.Head to Fractured Peaks and look for the entrance to the Vault of Stone.It will be guarded by a small army of demonic enemies. This dungeon will have conduits and small survival arenas rather than traditional traps, so be sure you have decent survivability or cleave damage to clear this dungeon. Find the Runecarving Tools in the lower depths of this dungeon, then return to The Gatehalls.

The World He Knew

Your character must be Level 20 or higher to start this quest.

The Runecarving Tools should allow you to create additional upgrades for your Seneschal companionSpeak to the Jeweler vendor in The Gatehalls and create an Uncertain Seneschal Stone Cache.This bundle will contain a small assortment of Governing and/or Tuning Stones for your companion. Craft a cache with your acquired materials and open it.

Diablo 4 The Yshari Boss

Additional sites must be explored before you can face the source of this demonic presence, so it’s time to explore the open world once again.Head to the Southern Expanse in Kehjistanand progress the listed quest steps. Visit the Shrine of Terror to attune the Inert Runestone of Terror, interact with the Shrine of Diablo further north, and then head to the Vizjerei Atheneum near the western corner of the Amber Sands (pictured above). Clear the dungeon and return to The Gatehalls.

The Tumor

“The Tumor” will take you to yet another Vault Dungeon, this time in the Hawezar region. The only notable difference with this dungeon is the inclusion of a boss fight towards the end of the dungeon. This boss behaves identically to the first boss of the campaign, a massive brute that wields a mace. Dodge when it begins to repeatedly slam the ground, and try to fight it from behind.

The Miracle

With the demon slain, Ayuzhan has pinpointed Malphas' exact location. You must travel to theVault of the Loomand slay this boss yourself. The dungeon is accessed from The Gatehalls hub on the southwest wing.This dungeon is broken up into four parts, requiring you to recover a key from each section.Each portion of the dungeon is riddled with traps and Elite mobs, so take this part slowly. Exact maps are shown above if you get stuck.

With all four keys in place, enter the vault and proceed to the boss arena. The final chamber will containMalphas' Keeper of the Vaults.This is a massive construct that will stick to the center of the platform, attacking you with ranged sawblade projectiles. More importantly,conduits will appear at each corner of the platform, activating nearby traps.Focus on breaking these conduits whenever they appear.

Diablo 4 Seneschal Construct Menu

You’ll want to fight this boss while standing near a corner that doesn’t have an active conduit, dodging its sawblades whenever possible. So long as you immediately break any conduits that spawn, this fightshouldn’t pose too challenging for most builds. Kill the boss and return to The Gatehalls to finish the seasonal questline.

Post-Quest Progression And Seasonal Content

With the seasonal questline complete, you can now experience most of Season of the Construct’s unique seasonal content. The trap-filled dungeons are calledVaultsand can be found throughout Sanctuary. You can enter one at any time from The Gatehalls hub, although some Vault gateways may be found in the open world or unique Nightmare Vault Sigils.

Compared to Nightmare Dungeons, a Vault places far more emphasis on movement skills and opening chests than clearing packs of monsters.A Statue to Zoltun Kulle can also be interacted with to award bonus items.You’ll needPearls of Wardingto interact with this statue, a currency item awarded from completing Vaults and defeating Heralds of Malphas.

Diablo 4 Stone Tags

Pearls of Warding are also required to initiate the Malphas fight. Defeating this boss awards Unique Tuning and Governing Stones for your Seneschal companion.

Dotted throughout Sanctuary are obelisks that are guarded by small packs of monsters. Opening these obelisks will grant a unique currency item that can be burned at nearby braziers to spawn a Herlad of Malphas. Kill the Elite monster to gain Pearls of Warding. In essence, you’ll want toacquire Pearls of Warding, clear Vaults, and upgrade your companion.The rest of the season remains the same as the Eternal Realm.

Diablo 4 The Ennead Dungeon Flame Trap

Diablo 4 A Body Stolen, A Body Made Map