Tiamat's Wrath is a science fiction novel by James S. A. Corey, the pen name of Daniel Abraham and Ty Franck, and the eighth book in their series The Expanse.

Holden is allowed to freely roam the grounds of High Consul Winston Duarte’s palace, but can't leave it, and is constantly surveiled.

In the Andro system, they find a planet-size green diamond which interacts strangely with their sample of active protomolecule, leading Elvi to hypothesize that it is some sort of alien record storage device.

In the Sol system, Naomi, working for the underground resistance against Laconia, arrives on a station in the Outer Planets to rendezvous with Bobbie and Alex, operating their stolen Laconian gunship Gathering Storm before leaving again.

Bobbie finds antimatter in the supplies taken from the Laconian freighter, intended as a power source for its magnetic weapon but useful as an extremely potent explosive, and hatches a plan to destroy the Tempest.

Medina Station, the Laconian dreadnought Typhoon and everything inside the ring space is annihilated in an instant, while Elvi and Fayez barely manage to escape.

In desperation, Admiral Anton Trejo, Colonel Jason Ilich, Teresa, and Chief Scientist Paolo Cortázar work to try to cover up the High Consul's condition from the rest of humanity.

Elvi is shown the secret behind the research that extended Duarte's life: two children who died but were reconstructed, with protomolecule-powered enhancements, by alien repair drones native to Laconia.

After asking Naomi about their plan, Bobbie and Alex set out to kill the Tempest, using a bomb constructed from antimatter and a blind spot in the ships sensors left over from its battle with the combined fleet in Persepolis Rising.

Laconian security forces catch up with Holden and Teresa but are killed by Amos, who has been resurrected (complete with the same protomolecule enhancements as the children) by the repair drones.