Amazon.com description: Product Description: Never were heroes more powerful than in the legendary Silver Age of comics. Now Mutants & Masterminds places that power-and responsibility-in your hands with the Silver Age sourcebook! Learn how to create M&M heroes with the kind of style and power of characters in the Silver Age, assisted by ready-made hero archetypes and character design advice. Use the villain archetypes for immediate foes and Gamemaster advice on building Silver Age style bad guys, including nigh-omnipotent adversaries. Travel back to the Silver Age of the Freedom City setting, during the height of the fabled Centurion's career and the founding of the Freedom League! Silver Age rounds out the excitement of the Golden Age and Iron Age sourcebooks, giving you a full range of eras for superheroic adventure.