The Formidable Four - Underground

When two girls mysteriously vanish from an abandoned quarry, teenage police cadets Jacques and Wuji are determined to investigate. Trained in various skills since they were six years old, they have been secretly solving crimes while their parents remain oblivious, and have not yet met their match. But when they are kidnapped by the menacing Alfonse and uncover his terrifying underground operation, they find more than they bargained for. Their captor intends to use them as guinea pigs for his sinister weapon developments and, together with the two equally well-trained girls, Jacques and Wuji must save the nearby town and city from the threat of a massive nuclear explosion. Will the four friends be able to escape the underground labyrinth and stop the bombs from exploding before it's too late? With its explosive action scenes, nail-biting suspense, extraordinary gadgets and brave and humorous characters, Underground is where young readers can live the story with these four.