A deadly danger from the time before the moonfall on the trail, the characters travel in this campaign Africa, Asia, North and South America as well as Europe. Shady figures, dangerous animals, and the naoh-mutated nature stand in their way and try to sabotage the success of the mission. "Operation Eurystheus" is a campaign of six contiguous double adventures that lead the players around the world. This volume contains detailed descriptions of the locations, including maps, NPCs and creatures, to ensure that this campaign offers an incomparable game experience in the world of Heredium.