Tokyo Zero by Marc Horne
Approx. 75,400 words.
Published on March 4, 2009.
One man goes to Tokyo to end the world. It goes fairly well.
"Cruise wildly imaginative waters where would-be fascist billionaires consort with female assassins, mothers are killed by the Khmer Rouge, plastic surgeons manipulate human DNA, bearded cult leaders levitate on the Tokyo subway, and a superpowerful artificial intelligence employs an irony filter." --TeleRead Review