Diablo 3 Darkening of Tristram: How to get the Royal Calf & Wirt’s Leg

Sam Smith
darkening of tristram

Diablo 3’s The Darkening of Tristram event brings some extra special rewards that serve as nods to the series’ past, and here’s some of the fun items you can unlock.

Diablo 3’s The Darkening of Tristram event is back and players can once again enjoy a version of Diablo 1 within Diablo 3. The event will see new exclusive loot being added to the game, as well as returning favorites from the series.

For example, Wirt’s Leg, an item that’s become legendary amongst fans despite being a useless weapon. However, in Diablo 2, Wirt’s Leg was the gateway to another world – the fabled Secret Cow Level. The unfortunate boy’s leg is back in Diablo 3, but it’s not the only reward offered by the event.

Here’s how to unlock a hidden quest within the Diablo 3 The Darkening of Tristram event that unlocks Wirt’s Leg, its transmog, and the Royal Calf pet. Note, you’ll need Wirt’s Leg to obtain the Royal Calf.

diablo in The Darkening of Tristram
Diablo is the final boss in The Darkening of Tristram.

How to unlock the hidden quest

The path to unlocking Wirt’s Leg, its transmog, and the Royal Calf pet begins by unlocking a hidden quest.

To unlock the quest, first, locate the Rotten Mushroom by accessing the Black Mushroom curio in Level 9 of the Labyrinth.

This is the first level of the Caves area, so you’ll need to hack and slash deep into the Cathedral to reach it. Once you have the Rotten Mushroom, bring it back to town.

Where to get Wirt’s leg and its transmog

To get Wirt Leg in The Darkening of Tristram event, follow the steps below:

  • Once you’ve obtained the Rotten Mushroom and activated the hidden quest, bring it back to Tristram and activate Adria’s Cauldron to produce the Witch’s Brew.
  • Take the Witch’s Brew to the dead body of the town drunk Farnham to receive the Drunkard’s Debt.
  • Take the Drunkard’s Debt to the corpse of Ogden (the innkeeper) which will produce Garda’s Letter.
  • Take Garda’s Letter to the healer Pepin’s corpse to produce the Healer’s Prescription.
  • Finally, take the Healer’s Prescription to the dead blacksmith Griswold to get Wirt’s Leg.

Wirt’s Leg is classed as a legendary mace and will grant you a new transmog choice once obtained.

Wirt's dead body
Things didn’t end well for Wirt.

Who was Wirt?

Wirt himself was an NPC in the original Diablo who sold incredibly overpriced weapons and armor to the hero. However, his main value is as a lore dump, as Wirt will reveal secrets that the other townsfolk are too scared to say.

The cheeky but opportunistic boy lost his leg to The Butcher when Tristram Cathedral was invaded by demons, although the town blacksmith, Griswold, was able to save his life. Wirt then attached a pegleg to his stump.

However, he was eventually killed when the town of Tristram fell in Diablo 2, leading the player to discover his body, loot his leg and all the money he had amassed in the previous game.

However, like in Diablo 2, Wirt’s Leg also still has links to cows and can be used for something extra special – a new pet.

royal calf in-game
The Royal Calf once obtained.

How to get the Royal Calf pet

The Royal Calf is a baby Hell Bovine, but unlike those that reside in Diablo 2’s secret cow level, this one is friendly toward the player. It can also be taken into battle as a pet to collect gold for you while you’re in combat.

Here’s how to unlock the Royal Calf in Diablo 3’s The Darkening of Tristram event:

  • First obtain Wirt’s Leg by following the instructions above and salvage the item.
  • Once Wirt’s Leg has been salvaged, it will yield an item called a Map of the Stars that reads ‘2-1-3’ on it.
  • Take the Map of the Stars to Adria’s Hut and approach the dead cows nearby.
  • Activate the dead cows in the order of the Map of the Stars. Click them in this sequence; middle, left, right.
  • If done correctly, this will trigger the Abandoned Farmstead entrance to open.
  • Enter and inspect Wirt’s Stash, a chest containing some gold and the Royal Calf pet to be used in all of Diablo 3.

Like all pets in Diablo 3, the Royal Calf can’t aid in combat. It’s mostly just a cosmetic cow that follows you around. However, it may pick up a lot of gold you may otherwise miss, and let’s not forget – it’s royalty.

So that’s everything you need to know about Wirt’s Leg and the Royal Calf in Diablo 3’s Darkening of Tristram anniversary event! Before jumping into the event, check out our dedicated build guides for the Barbarian, Crusader, Demon Hunter, Necromancer, Witch Doctor, and Wizard classes.