GURPS Supers Mixed Doubles

"Powerful Pairs for Super-Powered Roleplaying" Summarized the back of the book: Fourty-six complete characters for your GURPS Supers campaign. Villains and heroes from 200 to 775 points with variations from 100 to 1000 points. Characters are described in linked pairs, be they here-villain, hero-hero, or villain-villain.