A DEADLY ASSASSIN. A MYSTERiOUS WEAPON. A NATION ON THE BRINK OF WAR. When the world's deadliest assassin - The Chameleon - escapes from a high-security prison in the English countryside, Jack and his friends vow to track him down in their most dangerous case yet. Travelling to New York, a bustling city filled with airships, steamcars and exciting new ideas, they uncover a dangerous plot that threatens the president's...