Complex sentence: H1 Bloodstone Pass (Item Code: 9122) is module for Advanced Dungeons & Dragons (1st Edition) that also required Battlesystem and was published in 1985.
Split into simpler sentences: H1 Bloodstone Pass (Item Code: 9122) is module for "Advanced Dungeons & Dragons" (1st Edition). This module also required Battlesystem and was published in 1985.