Point Blank by Anthony Horowitz

Alex Rider, teenage superspy, is back. Fourteen-year-old Alex is back at school trying to adapt to his new double life... and double homework. But MI6 have other plans for him. Armed with a false ID and a new collection of brilliantly disguised gadgets, Alex must infiltrate the mysterious Point Blanc Academy and establish the truth about what is really happening there. Can he alert the world to what he finds before it is too late?