From publisher blurb: Join the Troll Shield Guild and fight the trolls for gold and glory. This adventure is based on the Era of Darkness Add-on, which is integrated in the Insight RPG System Core Rulebook. All rules, weapons, creatures etc. that are not explained in this adventure book can be found in the Insight RPG Core Rulebook. Insight RPG System Adventures are more about problem solving and reasoning, rather than the standard hack-and-slash solution.