Still trapped at the Higher Institute of Villainous Education, or H.I.V.E., evil-genius-in-training Otto Malpense is nearly assassinated and must now not only try to escape, but also find out who murdered his best friend--and save himself.

It's up to Otto to save the world from a renegade faction of the world's most powerful villains, known as the Disciples. When they kidnap two of Otto's friends, things get personal.

"Overlord has been reborn and forced to hop from victim to victim when he erases the personality. Otto is the only person who can contain him, and in order to get close to him, he needs the secret location of H.I.V.E. Nero knows that Otto cannot fall into Overlord's hands, so he activates Zero Hour, a plan to deal with any member of G.L.O.V.E., setting off a desperate race across the globe. But little do they know that Overlord has a new weapon...

Otto and Raven are desperate to rescue their friends from the clutches of Anastasia Furan, head of the evil Disciples organization. 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. In the three months since his “expulsion” from H.I.V.E., The Artemis Section—an elite intelligence division that goes after the toughest targets and reports...