In Assassin’s Creed Valhalla, you need to forge alliances with nearby territories to expand your settlement. When you intend to form an alliance in Grantbridge, you will meet Soma. In the Grantbridge story arc, your goal is to help Soma defeat Wigmund and regain control of Grantbridge.
Before the battle with Wigmund, Soma learns that one of Soma’s three most trusted advisors: Byrne, Leaf or Galinn, has betrayed her. Therefore, Soma asks you to collect evidence and find the traitor. This is quite an important mission, as it can significantly affect the plot of the game and the relationship of Eyvor with other characters.
To find the real traitor, you will need to collect evidence in and around Grantbridge. After speaking with the people in Grantbridge, you will find that both Leaf and Byrna have alibis. Byrna was with other people in Grantbridge on the night of the attack, while Leaf was at his shipyard. On the other hand, nothing is known about Galin’s whereabouts.
If you exit the tunnel at Soma’s house, you will find traces of yellow paint along the way, which will lead you to the paint bucket. After further investigation and a conversation with Leaf, you learn that the paint was stolen from Leaf, which was later used to paint the ship used by the invaders. This once again confirms his innocence.
With all this evidence gathered, you can finally go and tell Soma that Galinn is a traitor. Keep in mind that if you choose not a real traitor, this can significantly affect the plot of the game. Besides the fact that the wrong choice will lead to the death of an innocent, it will also mean that Byrna will not join your team.
In addition, a mistake in identifying a traitor can affect your relationship with Soma and make her colder towards you. If you want to see how the story will unfold, in the case when you have chosen the wrong traitor, we recommend that you first create a save just before talking with Soma, since it is impossible to replay this mission.