Shards of the Shattered Pact: Seowyn's Crossing
Brekhu was a Barghest, a Demon-infused monster combining the worst traits of Goblin and Wolf. This terrible amalgam led wolves and goblins alike out from Gristamere on a murderous spree. Among the victims of their swath of destruction was a tribe of shifters, including a young Ghost. Ghost was eventually able to slay Brekhu and avenge her people.