From Introduction: “The Silver Storm” is designed for six to eight Mutants & Masterminds heroes in the power level 8 to 10 range. It can accommodate a power level 12 hero as part of the group, but any more such powerful do-gooders are going to require the Gamemaster to ratchet up the opposition, either in numbers, power level, or both to provide a diverting enough challenge to the heroes. This adventure is set in Emerald City during the present day. It can, however, be used in the campaign city of the Gamemaster’s choice simply by changing the proper names.