For over a thousand years, the Factions have filled their secret ranks

with the best in their fields. Edison. Curie. Ali. Houdini.

Those who excel at the sciences of engineering, chemistry,

athletics and psychogenics.

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But when Hunter is taken on her 15th birthday to join the Mechs,
her arrival unexpectedly triggers the return of the most powerful member of the Fifth Faction after being trapped inside London's Big Ben for years.

The Scourge will unleash the most dangerous weapon of all time.

Old enemies will face each other across the battlefield.

And the fate of humanity will lie in the hands of four friends.

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