This page offers a guide on where to locate and how to complete Freyja’s Friend, which is a Mystery located in East Anglia.
Speak to the Cat
To begin this Mystery, you’ll need to speak to the white cat located in the southern region of Northwic. When you speak to the cat it’ll run off, and a child will approach. Speak to the boy and he will ask you to help him catch the cat. The child will then run through the town, and you’ll need to follow him until you spot the cat. When you see the cat, who’s easy to spot against the muddy roads, you’ll need to pick it up.
After finding the cat, speak to the boy again and he will tell you that you have a special bond with Nali the cat. Upon completing this quest, Nali the cat will become an official raider on your longship! Your cat will now accompany the rest of your crew when you go sailing.