The Winterhoof Brave has informed you that using the Brave's Flare to target all four of the towers at Skorn for air strikes would be advisable.
1x Northwest Tower Targeted
1x East Tower Targeted
1x Southwest Tower Targeted
1x Southeast Tower Targeted
As we move through Skorn, we must destroy the towers.
If you have a look at them, you'll notice that their tops are lined with casters. Getting too close to them would mean certain doom.
However, we can call in wind rider air strikes from Camp Winterhoof. To do so, we need to get close enough so that you can lob a smoke flare atop of them.
Just don't get too close.