Another fine Codex volume. While their books and adventures were written with a d20 OGL in mind, the material is largely system-agnostic and readily adaptable to any system. Useful and usable maps and tables make it worthwhile whether you want to actually run the adventure, use the material for a homebrew hexcrawl or build out your library with useful reference material and ready-to-play elements. The Monsterberg series are a great immersion into a fascinating period. Such Recommend!