David Simpson Books in Order

Drawing on the collapse of his own relationship, Simpson describes the hurt and disorientation of being left by a partner. Memories of earlier relationships mix humor and sadness with reflections intended to help readers facing similar loss.

After an eight-year relationship ends, Michael struggles with work, housing, dating, and reminders of his former life. An attraction to an unavailable coworker becomes another complication in his effort to rebuild a future for himself.

Nanotechnology has made extraordinary abilities and long life commonplace, but five terraformers return from Venus to find humanity murdered. James Keats and his companions investigate the catastrophe and fight to avoid sharing the victims' fate.

Four survivors of near-death experiences discover that the apparent promise of an afterlife conceals a soul-devouring predator. Pursued by ghosts and demons, they decode messages from the possessed while seeking a way to destroy it.

After replacing the defeated AI with a controllable system, James Keats and Thel spend time on terraformed Venus. An alien force answers the AI's earlier message, approaching Earth to learn why its correspondent has fallen silent.

Doctor Craig Emilson enters military service as World War III begins and becomes a Special Forces suborbital paratrooper. A mission to destroy the first powerful artificial intelligence places him at the beginning of humanity's technological transformation.

The post-human characters face V-SINN, a powerful adversary whose influence has remained hidden through their earlier adventures. Connections between those events emerge as past actions and new revelations deepen the threat to their altered humanity.

Parallel universes bring multiple versions of the Post-Human heroes and villains into overlapping timelines. As familiar identities shift and allies take on contradictory roles, the characters confront a reality far more complicated and dangerous than they understood.