Collect 2 high quality cougar pelts and 2 high quality kodiak pelts. These are uncommon chest drops from snowmane sabertooths or ravaging snowmane sabertooths( -352, -373, 3005 ) /waypoint -352, -373, 3005 and a sootpaw direbear ( -434, -374, 3183 ) /waypoint -434, -374, 3183 or frostpaw direbears respectively in Eastern Wastes, found around Dragon's Head Drifts. The high quality pelts needed are in chest drops.
Scribe the Coldain Hunting Blanket recipe (artisan lvl 2 required), get 1 glowing filament and craft the blanket on a sewing table. The blanket recipe is level 15; if you fail, you lose the pelts and must head back to Eastern Wastes and hunt until you get the pelts again.
Lay the blanket on the ice-encased corpse at ( 271, -335, -447 ) /waypoint 271, -335, -447 (where you found the original copper ring) on the ring war battlefield.