Mark Walden 
H.I.V.E. 2: The Overlord Protocol [EPUB ebook] 

Otto and Wing have special permission to leave H.I.V.E.’s secret island location to attend a funeral (all too common in their line of business). But before they reach their destination they are ambushed. Who would risk assassinating Otto Malpense, star pupil of the Higher Institute of Villainous Education and favourite of Number One, the most powerful villain alive? A new power is rising to challenge Number One’s authority, and they need H.I.V.E. and its powerful computer to do so. Otto thought the only thing he wanted was to escape from H.I.V.E., but now he’s desperately trying to save it, and himself.