Tom and Hester are rescued by Fang, who is revealed to be an Anti-Traction League agent, and takes them to the Shield Wall of Batmunkh Gompa which protects the nation-state of the League. Fang suspects that the weapon that London has reassembled will be used to destroy the Shield Wall, and warns League Governor Khan of MEDUSA. Khan is skeptical that London will attack, but Fang insists that they should bomb London to destroy the weapon. Convinced that the League will kill innocent people and angry at the idea of destroying his home, Tom storms out and discovers Valentine has infiltrated Batmunkh Gompa as a monk. Tom raises the alarm, but Valentine successfully cripples the League's northern fleet of airships. Valentine duels and kills Fang by stabbing her in the neck, before escaping in his own airship the "13th Floor Elevator". Tom and Hester take the "Jenny Haniver" and fly it back to London in the hope of stopping Valentine and MEDUSA themselves.