Otto and Raven are desperate to rescue their friends from the clutches of Anastasia Furan, head of the evil Disciples organisation. First they must track down the location of the Glasshouse, the prison where Furan trains children to become ruthless assassins. But Otto is also being hunted. This book takes HIVE in a new direction, with central characters forced to question everything that Nero has taught them and confront the consequences of life as a villain, set against the backdrop of a daring high-tech prison break whre nothing is quite as it seems.