The Temple of Drawoh Rock (OSR)

From publisher blurb: The Temple of Drawoh Rock is an adventure module for 1st level characters exploring the Ice Kingdoms. As warriors of Thane Ornulf the characters will sail the Atalac Sea, explore the Gate Isles, and raid the Monastery of Jove. But what starts out as a simple plan to rob some peaceful monks turns into a harrowing adventure as the adventurers cross paths with the machinations of a deadly sorcerer.