Aimed an teenage readers weaned on video games and television, this is a spy novel for younger teenagers which moves from a conventional Dublin day school into the world of international espionage in which a group are given placements in The Planet Earthy Academy, which aims at training future protectors of the planet. Their first mission after training is to penetrate a mysterious Bavarian Castle in the hope of tracking down a virus with the potential to destroy the world. This is all good fun with characters that are as normal as can be in a fantastic world. But the theme of protecting the world will engage many readers in this contemporary setting. Great fun, which is what teenage reading ought to be.