One of the side quests you get in Greedfall is called In Professor Serafeddin’s Footsteps. This quest is long and you can easily miss all the locations to complete it. Check out this Greedfall in Proffessor Serafeddin’s Footsteps guide to find all the clues.
Greedfall In Professor Serafeddins Footsteps Guide
In order to get the third piece you will have to kill the beast in that area. If you can kill him then you will gain access to the A tomb called Bedri. Inside of there you can find the third piece here on the map. The enemies inside can be tough if you face them in a corridor, try to lure them into more open areas.
We are still looking for the fourth piece.
It is in the corner near the skill shrine on the map.
We are updating this as we find more so check back soon for more notes.