Crashing Heaven

With the war over, Jack Forster and his sidekick Hugo Fist, a virtual ventriloquist's dummy tied to Jack's mind and created to destroy the Totality, have returned home.
Labelled a traitor for surrendering to the Totality, all Jack wants is to clear his name but when he discovers two old friends have died under suspicious circumstances he also wants answers. Soon he and Fist are embroiled in a conspiracy that threatens not only their future but all of humanity's. But with Fist's software licence about to expire, taking Jack's life with it, can they bring down the real traitors before their time runs out?