Far Cry 6 Mysterious Key is an item obtained while playing the Fetch Quest Yaran Story in Madrugada, and even though you may ignore it, Chorzioβs Mysterious Key is an item that you should not overlook.
As such, if you wonder how to use the Mysterious Key in Far Cry 6 or what to do with the Key Chorizo finds for Dani, below weβll discuss this specific item and why it is so important for you. But first, letβs go quickly over the Fetch Quest Yaran Story.
How To Get the Mysterious Key

Far Cry 6 Fetch Quest is a Yaran Story or a side quest you can access in Madrugada. This side quest becomes available after you meet two requirements:
- Unlock your camp at Montero Farm by completing the Main Operation named Meet The Monteros
- Finish the Whoβs a Good Boy? Yaran Story and feed ChorizoΒ
Upon feeding Chorizo some crocodile meat, youβll immediately unlock the Yaran Story named Fetch Quest. Which, as you can guess, is just that. A fetch quest. Start by pressing the pet button while near Chorizo, and heβll ask you to follow him. From time to time, youβll see Chorizo digging up some items you may want to collect.
- First, heβll stop near his house and dig 1 Supremo-Bond
- Up, on the hill nearby, heβll stop again and reveal some Meat
- Next, heβll reveal another treasure inside the large house on the same hill. This treasure is near the couch, and it contains the Mysterious Key in my screenshot above
- Now, heβll go outside and enter another house where youβll be able to retrieve some Gun Powder
- Finally, heβll go outside once more, and heβll show you the location of Chorizoβs Stash, which contains Chorizoβs Tag Charm
As you can notice, the items above are more or less important, with one exception: the Mysterious Key. Now that you know where to find it, letβs see how you can use it.
How To Use the Mysterious Key
The Mysterious Key Chorizo helps you find, unlocks a specific chest, and requires a bit of backtracking. Once you get it, open your map and fast-travel to Claraβs Camp on Isla Santuario. From here, travel north towards Casas Cove and locate Guau-Guau Island on my map below.

Swim to this island if needed (although you can also Air Drop since now you know how to get the Wingsuit) and locate the locked chest by the small campfire. You can see it in the next screenshot.

This is the chest you must unlock using the FC6 Mysterious Key found by Chorizo. Or simply put, the Gau-Gau Island locked chest is unlocked by finding Chorizoβs Mysterious Key. Want to know whatβs inside? It is the Fuck Anton Unique Rifle you see in my image below.Β

It may not be the best Rifle in Far Cry 6, but it looks fantastic and has a descriptive name. Check our guide for all other Far Cry 6 Unique Rifle locations. You have to keep in mind that without this weapon, you wonβt be able to unlock the Armed to the Teeth achievement/trophy, which means that you may want to open the said chest the moment you get the key.