From the back cover:
Janus is a methodical and cunning villain, with a constantly changing series of sidekick vixens that he uses then tosses away. Occasionally this backfires on him. . . and the hunter becomes the hunted.
Roll Call 3: Country Matters presents two dozen femme fatales from around the world that you can drop into any Silver Age Sentinels campaign.
Includes character bios, dual-stat write-ups for the Tri-Stat and d20 Systems, and game seeds to kick-start your creativity.