My wind riders are trained to fly to many different places, as long as you have already been to that place and spoken with the wind rider master there.$B$BYou have been to the Crossroads and spoken to their wind rider master Devrak, so now you can fly directly to him from here.  Once you're at the Crossroads, you can deliver Gryshka's letter to Zargh.$B$BSpeak with me when you are ready to go.