Batman and Batgirl are two of the world's greatest super-heroes. They have the brains, tools, and talent to take down Gotham City's most dangerous bad guys. But what's their most powerful skill of all? Teamwork! In this addition to the best-selling DC Super Heroes picture book series, join Batman and Batgirl as they demonstrate the importance of working together. (W) Michael Dahl (A/CA) Omar Lozano