Tracking down the Assassin's Creed Odyssey Eyes of Kosmos branch is usually the first time players realize just how massive the Cult of Kosmos system actually is. It’s a wake-up call. One minute you’re just a mercenary in Phokis trying to get paid, and the next, you’re staring at a menu of hooded silhouettes that look like a puzzle designed by someone who hates you. Honestly, it’s one of the best parts of the game. It turns a standard action RPG into a detective noir set in Ancient Greece.
The Eyes of Kosmos are the "intelligence" wing. They aren't the heavy hitters or the battlefield generals you'll find later in the Peloponnesian League or the Heroes of the Cult. These guys are the sneakers. They are the ones controlling the flow of information, the whispers in the ears of politicians, and the ones hiding in plain sight. If you want to stop the Cult, you have to cut off their vision first.
Most people stumble upon Elpenor early on because the main quest basically forces you to kill him. He’s the entry point. But after that? The game lets go of your hand. You’re left with cryptic clues like "helps a politician in Athens" or "owns a quarry." If you aren't paying attention to the side quests, you’ll spend forty hours wondering why your Cultist menu is still full of grayed-out icons.
Breaking Down the Eyes of Kosmos
You've got five main members and one Sage. Elpenor is the one everyone knows. He’s the snake who tries to hire you to kill your own mother—or father, depending on how you're playing. Once he’s out of the picture, the branch opens up.
Sotera is usually the second one people find, mostly because she’s just hanging out at the Port of Nisaia in Megaris. You don't even need a complicated clue for her; you just need to go to the docks and look for the woman who looks suspiciously like she’s guarding a bunch of illegal shipments. She’s low-level, but she represents the Cult's logistical grip on the region.
Then there’s The Midas. He’s in Argolis. He’s basically a walking bank. The game describes him as someone who can buy anyone, and his location—usually near the Temple of Poseidon or the marketplace—reflects that. He’s not a fighter. If you breathe on him too hard, he’ll fold, but getting to him through his guards is the actual challenge.
The Ones You'll Actually Miss
Hermippos and Midas are straightforward, but The Master? He’s the one that trips everyone up. You can't just find him by wandering. He is tied specifically to the "A Life's Worth" side quest in Attika. If you haven't done the pre-requisite quests involving Socrates (the most talkative man in Greece), The Master will never appear. He’s a slave owner, which makes killing him feel particularly cathartic, but he’s also a prime example of how Ubisoft tied the Assassin's Creed Odyssey Eyes of Kosmos progression to world-building rather than just map markers.
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Midas is easy to spot once you have the clue because he’s literally standing in the middle of the street in Argos, shouting at people. He’s loud. He’s obnoxious. He’s exactly what you’d expect from a mid-level cultist who thinks he’s untouchable.
Then we have Hermippos. He’s another Athenian connection. To reveal him, you generally need to progress through the "Free Speech" questline. It’s a subtle nod to how the Cult used the guise of democracy and philosophy to mask their influence. You find him at the Temple of Hephaistos. Pro tip: don't just rush in. The guards in Athens are notoriously aggressive if you start a fight in a public space.
Nyx the Shadow: The Sage
Once you’ve cleared the five lackeys, you unlock Nyx the Shadow. She is the Sage of the Assassin's Creed Odyssey Eyes of Kosmos.
Unlike the other Sages who often hide in fortresses or behind massive armies, Nyx is a bit more personal. She’s usually found in Athens, specifically around the Theater of Dionysos or the nearby markets. She’s a "Shadow" for a reason. She blends in. If you aren't using Ikaros to scout thoroughly, you might walk right past her.
What makes Nyx interesting from a lore perspective is her autonomy. Most of the Cult is obsessed with the bloodline of Leonidas, but the Eyes of Kosmos seem more concerned with the actual administration of power. Killing Nyx gives you a piece of the Agamemnon set—the Gauntlets, specifically. If you’re running a fire build, this is the branch you need to prioritize. The Agamemnon set is arguably the best mid-game armor for players who like watching their enemies burn to death.
Why This Branch Matters for Your Build
The Assassin's Creed Odyssey Eyes of Kosmos isn't just about the story. It's about the loot. Specifically, the Agamemnon Set.
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Every Cultist branch drops a specific legendary armor set. The Eyes drop the fire set. In the current meta of Odyssey—even years after release—fire damage remains one of the most broken mechanics if you spec into it correctly. By the time you finish this branch, you’ll have several pieces of armor that increase burn duration and elemental buildup.
- Elpenor: Scaled Chestplate
- Sotera: Slacks
- The Master: Gauntlets (Wait, no, Nyx drops the Gauntlets—The Master drops the boots)
- Hermippos: Boots? No, let's be precise: The Master drops the boots, Hermippos drops the helmet.
- Midas: Usually drops the belt.
If you equip the full set, you get a massive boost to burning rate. It’s hilarious. You hit a mercenary once, and they spend the next thirty seconds screaming while their health bar melts.
The Philosophy of the Eyes
There's a lot of debate among fans about whether the Cult of Kosmos was "right" in their desire for order. The Eyes represent the most intellectual version of that argument. They aren't the thugs. They are the poets, the merchants, and the politicians.
When you read the letters found on their bodies, you see a pattern. They genuinely believed that Greece was too chaotic to survive without a shadow government. They saw the war between Sparta and Athens as a waste of resources. By controlling the information (the "Eyes"), they thought they could guide humanity to a peaceful, albeit controlled, future.
Kassandra (or Alexios) doesn't care, obviously. You’re there for revenge and your family. But the dialogue options when confronting some of these members—especially during the Socrates quests—allow you to poke at the morality of what you're doing. Are you a hero or just a different kind of chaos?
Finding the Clues
If you’re stuck and can't find the last member, check your inventory for "Letters."
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A lot of players forget that clues aren't always automatic. Sometimes you have to physically go into your inventory and read a note you looted off a dead mercenary or found in a chest in a random fort. For the Eyes of Kosmos, many clues are hidden in the Attika region.
- Check the Silver Mine in Attika. It’s a goldmine for clues (pun intended).
- Complete the "Enrolling in School" questline.
- Kill the mercenary "The Translucent." Sometimes clues are carried by high-ranking mercenaries who are indirectly working for the branch.
Actionable Steps for Completion
If you want to wipe this branch off the map in a single play session, follow this order. It’s the most efficient route based on level scaling and geographical proximity.
First, finish the main story up through your first trip to Athens. This ensures Elpenor is dead and the Cultist menu is fully functional. While in Athens, immediately start the Socrates side quests. Do not skip them. "A Life's Worth" is the specific quest you need for The Master. He won't show up otherwise.
Second, head south to Megaris to take out Sotera. She’s a low-level target and usually unguarded if you catch her at the right time of night. After that, swing over to Argolis. Look for Midas in the streets of Argos. He’s usually near the leader’s house or the main square. He’s a civilian-tier fighter, so it’s an easy kill, but watch out for the local guards who will swarm you for "murdering" a prominent citizen.
Third, wrap up the Hermippos clue by finishing the "Free Speech" quest in Athens. He’s at the Temple of Hephaistos. Once he’s dead, the Sage, Nyx the Shadow, will be revealed.
Finally, find Nyx in the southeast area of Athens. She’s often walking alone or with just one guard near the theater. Assassinate her, confirm the kill, and you’ve officially blinded the Cult. You'll walk away with a nearly complete Agamemnon set and enough legendary shards to upgrade your Spear of Leonidas.
Don't overthink the combat. These guys are bureaucrats, not warriors. Use your bow to pick off their guards from a distance, or just use the Rush Assassination ability to chain-kill the whole group before they even draw their swords. The Eyes of Kosmos are meant to be a test of your investigation skills, not your parry timing. Once they're gone, the rest of the Cult starts to feel a lot more vulnerable.