Before Shadow World, there were the Loremaster modules:
The Iron Wind recounts the tale of Elor Once Dark, a famed Loremaster who traveled to the chill land of the Mur Fostisyr, snow-clad isles surrounded by cruel glaciers and treacherous icy wastes. It is the home of the Iron Wind, an arm of the unlife threatening to subdue the valiant peoples of the isles. Demons, supernatural assassins, Dragonlords and corrupt Elven priests all serve the dark purposes of the Iron Wind as they strive to further drive apart the already divided peoples. Against these terrifying minions stand the Elvish Ky'taari; the stout, hardy Fustir, the secretive, superhuman Udahir hidden in their subterranean metropolis; and the fierce, warlike Syrkakar - who are already falling under the cruel shadow of the Iron Wind.
An adventure module for Rolemaster 2nd Edition, but usable with later editions.
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