Akkad (Akkad #2)

Professor Kessler's experiment continues, but the powers of his test subjects are growing at a phenomenal rate. He calls upon Sofi, herself a guinea pig for him once, and who loathes him, to oversee the teenagers... and track them down when they inevitably escape. But are his calculations as good as he thinks? Is it not already too late to hope to control the five geniuses - or even to stop the invasion, as the number of enemy incursions suddenly skyrockets?