Fourteen-year-old Amy Cahill and her younger brother, Dan, have had enough. Not only do they have to find the 39 Clues first, they’re expected to reunite their backstabbing family – the same people who killed their parents. But Amy and Dan haven’t survived explosions and assassination attempts for nothing. They have a plan to finish the Clue hunt on their own terms. Too bad there’s a final, fatal secret the Madrigals haven’t told them. A secret that could cost Amy and Dan – and the world – everything…
Into the Gauntlet is the tenth book in The 39 Clues novel series written by Margaret Peterson Haddix.