Terror strikes as the world of magic and machines struggles to build a fragile peace out of a history of hatred and fear! Jono and his friends train at the Windom Academy for a life as mechanically powered soldiers, when the Empress and the Sage of Ages announce a World's Faire that will bring the once warring Ends of the Earth together. Jono's new team must outwit the plotting traitors that could be lurking inside Windom itself, before the Tombs can unleash an ancient pox to destroy the world's last chance to overcome the withering scars of their past!