David Guymer
Thorgrim

As orc warboss Gorfang Rotgut prepares a final apocalyptic assault on Karak Eight Peaks, King Belegar must swallow his pride and call for help from one dwarf who can break Rotgut's horde: High King Thorgrim Grudgebearer.
Warhammer Fantasy Battles
novella

Also in:
Warlords of Karak Eight Peaks