MIMIR'S LEGEND
1. Pickup the shiny objects in Einbroch Field. They are indicated as yellow stars in the map.
2. Once you've collected all 4, Place them in your Handbook.
3. Once you've placed all 4 in your handbook, find and talk to Gerard, Sage Mentor.
4. He will give you Mimir's Horn.
5. Add it in your handbook.
6. Done
