The Cave of the Yetis

From publisher blurb: Issue #5 of Populated Hexes Monthly moves to the frozen north of Absalom, a thousand miles north of the Plains of Zelaia, and features an ice cave inhabited by cruel yetis. The issue also includes rules for exploring in the icy wastes, new equipment to help explorers survive, a new monster (the winter wight), the valuable alchemical substance known as spectral frost, and several new cold-themed spells.