From PDF Introduction: Blood Storm is a mini-campaign adventure designed for parties of four or more Iron Heroes characters who begin at 5th level. The adventure primarily features a mix of dungeon- and city-based adventuring, but there is also a short wilderness section you can expand if you wish. Although Blood Storm is designed to function as a stand-alone adventure, it is set in the same region as Fiery Dragon’s earlier release Dark Harbor, and can readily be used as a sequel to that module.