Halo: Ghosts of Onyx is the fourth novel of the Halo series. Moreover, before reading Halo: Ghosts of Onyx you should read Halo: First Strike. You can learn more in our reading order article for the Halo book series.
Halo: Ghosts of Onyx was written by Eric Nylund. It was first published on October 31, 2006.
Published editions of Halo: Ghosts of Onyx
Halo: Ghosts of Onyx was first published on October 31, 2009, by the publisher Tor Books.
Then, thirteen years later, on April 9, 2019, the publisher Gallery Books published a new edition. This one was nearly fifty-pages lengthier than the original edition.
Synopsis of Halo: Ghosts of Onyx
Similarly to the previous Halo books, this one is divided into sections. Specifically, Halo: Ghosts of Onyx is divided into the following sections:
- Prologue: Beta Company’s Victory at Pegasi Delta
- Section 1: Lieutenant Ambrose
- Section 2: Spartan-III
- Section 3: Intruders
- Section 4: Dr. Catherine Halsey
- Section 5: Blue Team
- Section 6: The Ghosts of Onyx
- Section 7: Reclaimers
- Epilogue: Shield World
Now, let’s learn more what happens in each section of Halo: Ghosts of Onyx. Be warned, however, that there will be spoilers below.
Prologue: Beta Company’s Victory at Pegasi Delta
Three-hundred Spartan-IIIs are deployed to the planet Pegasi Delta, which is controlled by the Covenant.
The Covenant fight back, resulting in the death of all Spartan-IIIs, except two: Spartan Tom-B292 and Lucy-B091. However, they are intensively traumatized, for all the deaths they witnessed at just twelve-years-old. In fact, Lucy ends up being unable to speak due to the shock.
Section 1: Lieutenant Ambrose
Fourteen years ago, Spartan-II Blue Team is fighting against the insurrectionists, to retrieve the FENRIS nuclear warheads. They succeed, although it costed Graves his life.
Five months later, Colonel James Ackerson proposes a new SPARTAN program, namely SPARTAN-III. The United Nations Space Command agree and hand him the planet Onyx, where he can train the new Spartan-IIIs.
A month later, Colonel James Ackerson recruits Kurt to the SPARTAN-III program, to train the future Spartan-IIIs soldiers. The Colonel gives him the surname Ambrose, to hide his true identity as a Spartan.
Section 2: Spartan-III
On the planet Onyx, Kurt keeps training the volunteers of the SPARTAN-III program.
A number of years later, Kurt learns that many of his soldiers have died during an operation. Enraged by his loss, he changes the training of his soldiers and proposes upgrades to their armor.
Despite this, most his remaining soldiers are killed, exceptions include Tom-B292 and Lucy-B091.
In another attempt to improve the success rate of his soldiers, Kurt changes the Spartan’s brain, to stop them from being able to feel pain.
Section 3: Intruders
The Spartan-IIIs are attacked by aliens. Nearly every human dies or tries its best not to die.
Section 4: Dr. Catherine Halsey
Landing on the planet Onyx, Doctor Catherine Halsey and Spartan Kelly-087 are attacked.
Once they’ve landed, they meet with the Spartan-III survivors. Doctor Halsey realizes the drones are from the Covenant, so she calls for help.
Section 5: Blue Team
Planet earth is surrounded by the Covenant forces, but they manage to send three Spartans to planet Onyx.
Once there, the Spartans are attacked by the Sentinels. The Spartans manage to flee, however, and head towards the survivors of the planet Onyx.
Section 6: The Ghosts of Onyx
The Covenant learn about what Doctor Catherine Halsey found on planet Onyx. A big fleet of Covenant forces prepare to advance to planet Onyx and recover the Forerunner artifact.
A grunt plays with a bomb, carelessly. This results in the destruction of the planet of the Covenant forces, its moon, and the armada.
Section 7: Reclaimers
A Covenant fleet and a United Nations Space Command fleet arrive near planet Onyx at the same time. This results in a battle that destroys nearly all the United Nations Space Command’s spaceships.
On the surface of planet Onyx, the covenant are racing after the humans. Dr. Catherine Halsey learns that the planet is, in truth, a construct hiding a forerunner shield world.
In the heat of the planet, Doctor Catherine Halsey disables a manufacturing facility of Sentinels and try to find the shield world in a slipspace rift. Meanwhile, a few Spartans die in their fight with the Covenant forces.
Epilogue: Shield World
In the slipspace rift, there’s a sphere similar to earth, but separeated from the normal space-time continum.
What to read after Halo: Ghosts of Onyx?
Once you’ve read this book, you’re ready to read the next on the line: Halo: Contact Harvest.