The Order of the Ancients is making a return in Assassin’s Creed Valhalla. First introduced in Assassin’s Creed: Origins, The Order of the Ancients were the main antagonists in the game and are the Templars’ predecessors. The Hidden Ones are the ones who have pledged to weed them out from society.
To unlock The Order of the Ancients in Assassin’s Creed Valhalla, you first need to ensure that you have defeated Kjotve and reached England after completing the Swan-Road home mission. In the Settling down mission, you will embark on your first monastery raid and gain supplies to start building your settlement.
The first building you add in your settlement, Gunnar’s forge, is a part of the main quest itself. However, after that, you are free to add any building as per your liking. To unlock the Order of the Ancients questline, you need to head forward from the Gunnar’s forge until you meet Hytham. Interact with him, and he will speak about his plans to build the Hidden Ones Bureau.
After that, a short quest will begin where you will learn the Leap of Faith. Completing this quest will unlock the Order of the Ancients questline. There is a vast list of people you need to defeat to take down the Order of the Ancients. You need to follow a hierarchy to know more about the higher-ups in the Order of the Ancients.
At the bottom of the hierarchy are Zealots, that are not a part of the Order of the Ancients, but are hired mercenaries that assist the Order. Killing a Zealot will reveal clues about Order members, that are also known as Palatinus or Acolyte. The best way to reveal Zealots is by exploring the world and forming alliances. If a Zealot is nearby, you will get a prompt on the map as well.
Once you have killed three Zealots, you will gather all clues about one Acolyte, and his intel will be revealed. Killing six Acolytes will give intel on their Maegester. And finally, killing five Maegesters will reveal the Grand Maegester.