Boots: The League of Secret Heroes

The League of Secret Heroes embark on their most critical mission yet in Paris in this third book in the adventure series. When they uncover a Nazi spy plot threatening Chicago, Mae checks on her aunts, WWII pilots Willa Brown and Janet Harmon. With her aunts missing, captured by the sinister Metallic Falcon, the Infinity Trinity, with the help of the Women Airforce Service Pilots and Room Twelve, journey from Chicago to Texas and finally Paris in an attempt to thwart the villain and rescue missing superheroes. The stakes are high as they face their biggest mission yet.