Doomstones Campaign part 1
From the back cover:
"The Yetzin Valley stands at the southern end of a vital pass over the Vaults Mountains. A hundred years ago, the valley was conquered by the Orcs of the Bloodaxe Alliance - theirs, however, was a brief and bloody reign, and is now all but forgotten.
A chance discovery in the mountains puts the adventurers on the trail of the Bloodaxe Alliance, retracing the last journey of the warrior-priest Torgoch. His path leads the adventurers towards the fabled Crystal of Fire...
Designed for Warhammer Fantasy Roleplay adventurers, Fire in the Mountains is the first part of the Doomstones Campaign, a series of WFRP adventures set in the rugged Vaults mountains."
Later re-printed, together with Blood in Darkness, as Fire and Blood.