While exploring Rigafilki in Assassin's Creed Valhalla, sooner or later you will find an abandoned house with a locked chest inside. In this guide, you will find out where the key to the chest is.
Where to find an abandoned house
The house is located in the central part of the island, northwest of Fornburg. It can also be found by zooming out on the map and heading towards the island directly north of where Ryugjäfülke is written on the map. The abandoned house itself is open, but the chest is locked inside. On the table is a note about Ornir's fate.
Where to find the key
Exit the house and follow the path northeast. Use Odin's Sight to scout the area and find a pack of wolves. The wolves guard the skeleton of Ornir, where the key to the chest lies.
Kill the wolves, take the key and return to the house. Inside the chest, you will find a piece of coal.