The Gryphon Knights are the commanders of the Sovereign’s Finest, the King’s loyal advisors and bodyguards.
The Sovereign’s Finest is The Crown’s Personal Unit. They are not only elite fighters who have distinguished themselves in service to the Country (Caladania), but they are trained to be envoys of the crown and capable of special duties.
You receive a vision of a rooftop "somewhere close by", where a rare moss grows; in the vision, you know the moss is suitable for greatly enhancing the effects of certain types of potions. Now go and find that rooftop. Don't fall off. (Of course, rooftop runners *will* be taken for miscreants by the local City Watch....)