The Magister’s Mask is located within a chest inside the church in King’s Bury. You can either enter through a window or open the main door with your crew, if you’re raiding. You’ll head to King’s Bury during the Raising Iron main story quest.
This sword is found within a chest in Forest Hideout camp, located in Theotford Forest, west of Theotford. Watch out as this camp is infested with enemies, so you’ll either need to fight or sneak your way to the chest.
Plank and Buckler
This weapon is located in Sutton Hoo. To get to it, throw a torch behind the breakable wall to destroy it. Alternatively, if you have the ability Incendiary Powder Trap, then you can shoot a fiery arrow at the wall to explode it. Behind, you’ll find a chest with the Plank and Buckler.
During ‘The Measure of a Norseman’ you’ll travel to a place named Serpent’s Landing. There, you’ll be able to locate the Magister’s Cloak within a chest. You’ll first need to find a key to unlock the chest, and this can be found on the table in a tent nearby.