Retro Rocket #4

The leader of the Quorum tells Retro that his people are aliens who download their consciousness into a host species until they burn the bodies out. Humans have so far been resistant to the node implants that would allow the Quorum to possess them and Retro offers to help but only if one billion humans, including Sparky, are spared. Sparky learns that Retro plans on sacrificing himself to stop the Quorum and save her but she and Zithri, who is tired of his parasitic existence, change the plan and lead Retro to the ships central computer core where he can destroy the Quorum at its source.