Glad to see some g z talk. Our who's the rat talk was getting old. So here's a thought...
how about a "new world order" type organization..(I know its cheezy, but best way to describe it) spreads themselves out across the globe with of coarse Ink as the leader....maybe. And releases a "catalyst " a simple biological weapon that can lie dormant for x amount of time ... Until something triggers it... Such as an infrasonic sound wave. Wave triggers bioweapon, bioweapon becomes active in host blood and spreads.... And mutates people into whatever there biological makeup was previous to said incident. Smarts get smarter ...on roids? ...now a giant....i dunno that's just how i would write it