Includes bibliographical references.

When the infinity trinity hears of a Nazi spy plot that could bring danget to Chicago, Mae knows they must go to check on her beloved aunts, the daring World War II pilots Willa Brown and Janet Harmon. Mae's Granny Crumpler isn't exactly thrilled about Mae and her friend trying to get involved with something so dangerous--especially when she's already worried about not hearing from Mae's dad, who is serving in Europe and fighting for freedoms on ad off the battlefield. But when Aunt Willa and Aunt Janet go missing, Mae knows that the sinister spy plot just got personal. They discover that the evil Metallic Falcon has captured her aunts--and he is determined to thwart the Infinity Trinity's ultimate quest to bring back Zenobia and all the missing superheroes safely. With the help of the Women Airforce Service Pilots (WASPs) and Room Twelve, Mae, Josie, and Akiko must use all their powers and code-cracking smarts. Can the Infinity Trinity soar to new heights and complete the biggest mission of them all?

Ages 8-12.,Aladdin.