The Altar of Shadows
is the prison of Teron Gorefiend
. It is located in the central southern edge of the Shadowmoon Valley
, opposite Netherwing Ledge
. You can see it on the map as a small altar icon directly south of the Scryers
' Sanctum of the Stars
base where the green falls go off the edge. Coordinates are [58, 71]
This altar is required for making the tailoring item, Shadowcloth. Unlike Spellcloth, creating Shadowcloth does not cause a creature to spawn.