The Silver Vein locations - Assassin's Creed Odyssey

Locate all members of The Silver Vein wing from the Cult of Kosmos in Assassin's Creed Odyssey.

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One of the best ways to get gear in Assassin’s Creed Odyssey, as well to progress the main story and other activities, is to hunt and kill Cult of Kosmos members around Ancient Greece. This is one of the biggest undertakings of your experience as each cultist needs to be discovered through a series of clues that can range from being handed to you to sitting in a chest at the bottom of the ocean. Today, however, I’ll give you all the required information to hunt and kill the Silver Vein wing of the Cult of Kosmos and unlock the Agamemnon Set, the Elysian Axe, all legendary items.


Epiktetos the Forthcoming - Level 10

  • Unlocked By: The Serpent’s Lair
  • Location: Sanctuary of Delphi, Grand Mount Parnassos, Phokis
  • Loot: Agamemnon’s Gauntlets
This cultist is killed through story progression. Can't be missed.
This cultist is killed through story progression. Can't be missed.

The first member of The Silver Vein that you kill will be done through a story missions, so there’s no fear that you can miss this guy or be under leveled. The moment you get the Cultists tab in your inventory, Epiktetos the Forthcoming should already be dead.


The Chimera - Level 20

  • Unlocked By: The Serpent’s Lair
  • Location: Beach Encampment, Steropes Bay, Andros
  • Loot: Boots of Agamemnon
The Chimera was easy to kill with a Predator Shot arrow from range.
The Chimera was easy to kill with a Predator Shot arrow from range.

The Chimera gives mixed reports on what her level is, but she’s level 20. She should be unlocked from the moment you have the list, so once you get close to level 20 you can hunt her. She’s got a few guards with her, but a Predator Shot to the head drops her easily enough if your character is configured for a bit of Hunter damage. Don’t forget to confirm the kill once the guards have been eliminated.


The Centaur of Euboea - Level 31

  • Unlocked By: The Serpent’s Lair
  • Location: Abandoned Mine, Mount Dirfi, Euboea
  • Loot: Agamemnon’s Waistband
Sneak into his cave, avoiding the guards outside if at all possible.
Sneak into his cave, avoiding the guards outside if at all possible.

The Centaur of Euboea should be unlocked as soon as you get the list. There are guards outside of the abandoned mine and inside, so you’re probably going to have a fight on your hands. Try sneaking into the mine without conflict to make your life easier.


The Silver Griffin - Level 31

  • Unlocked By: Slaver’s Gift (Clue)
  • Location: Prasonisia Island, Tavern Point, Mykonos
  • Loot: Agamemnon’s Body Armor
Tucked away on a small island, The Silver Griffin is an easy target.
Tucked away on a small island, The Silver Griffin is an easy target.

The clue to find The Silver Griffin is in the Silver Mine, part of the Silver Mountain region in Attika. Inside this mine there will be a legendary chest, and the Slaver’s Gift clue is inside. This will unveil both the identity of The Silver Griffin, and his location.


Machaon the Feared - Level 45

  • Unlocked By: Dead Man’s Note (Clue)
  • Location: Patrai Military Shipyard, Mount Panachaikos, Achaia
  • Loot: Agamemnon’s Helmet
Using Predator Shot from your ship, kill this cultist long before you're supposed to.
Using Predator Shot from your ship, kill this cultist long before you're supposed to.

The Dead Man’s Note clue to finding Machaon the Feared is in Shipwreck Cove, part of Scavenger’s Coast in Achaia. It can be found sitting on a rock. Loot the dead body to unveil the location and identity of Machaon the Feared, who is hanging out just along the coastline from where you are when you find the clue. If you are under leveled, park your ship next to the shore and use Predator Shot to slowly kill him. Might take 100 arrows, but he'll never attack you if you stay on your ship.


Polemon the Wise - Level 50

  • Unlocked By: Eliminating all Silver Vein members
  • Location: Teichos of Herakles, Erymanthos Peaks, Achaia
  • Loot: Elysian Axe
Another cultist that is easy to kill if you are creative with your Hunter damage and bow skills.
Another cultist that is easy to kill if you are creative with your Hunter damage and bow skills.

Polemon the Wise is the Sage for The Silver Griffin wing of the Cult of Kosmos. He is only revealed after you eliminate the other five members, each dropping a clue. However, Polemon the Wise can be killed while you’re extremely under leveled. Stand on top of the building he’s in and use your bow to whittle his health away slowly. Predator Shot and Ghost Arrows of Artemis will do the trick, and at level 33 I snagged over 43,000 XP by killing him and completing The Silver Vein quest.


Now that The Silver Vein has been completed and all cultists eliminated, get more help tracking down the worst that Ancient Greece has to offer with our Assassin’s Creed Odyssey walkthrough and guide.

Managing Editor

Bill, who is also known as Rumpo, is a lifelong gamer and Toronto Maple Leafs fan. He is known for his guide writing and, unsettlingly enough, enjoys grinding out in-depth collectible articles. Tweet him @RumpoPlays if you have a question or comment about one of his guides.