Ghost Spin (The Spin Trilogy Book #3)

Sometimes a ghost of a chance is all you get.

The Age of Man is ending. The UN’s sprawling interstellar empire is
failing as its quantum teleportation network collapses, turning once-
viable colonies into doomed island outposts. Humanity’s only hope of
survival is the Drift: a mysterious region of space where faster-than-light
travel—or something far stranger—seems possible. As mercenaries and
pirates flock to the Drift, the cold war between the human-led UN and
the clone-dominated Syndicates heats up. Whoever controls the Drift will
chart the future course of human evolution—and no one wants to be left
behind in a universe where the price of failure is extinction.

When the AI called Cohen ventures into the Drift, he dies—allegedly by
his own hand—and his consciousness is scattered across the cosmos.
Some of his ghosts are still self-aware. Some are insane. And one of
them hides a secret worth killing for. Enter Major Catherine Li, Cohen’s
human (well, partly human) lover, who embarks on a desperate search
to solve the mystery of Cohen’s death—and put him back together. But
Li isn’t the only one interested in Cohen’s ghosts. Astrid Avery, a by-the-
book UN navy captain, is on the hunt. So is William Llewellyn, a pirate
who has one of the ghosts in his head, which is slowly eating him alive.
Even the ghosts have their own agendas. And lurking behind them all is
a pitiless enemy who will stop at nothing to make sure the dead don’t
walk again.