Graham Brown Books in Order

NRI operative Danielle Laidlaw leads an expedition into the Amazon in search of a lost Mayan city. With Hawker guarding the team, she uncovers a breakthrough discovery while enemies close in from every side.

Danielle Laidlaw discovers a Mayan stone that releases immense energy and counts down to December 21, 2012. With Hawker and her team, she must locate three matching artifacts before others turn an ancient prophecy into disaster.

A cargo-ship disaster near the Azores leads Kurt Austin and Joe Zavala to an underwater field of wrecked ships and planes. Their investigation uncovers missing scientists, advanced magnetics, and a weapon with global reach.

After a virus attack at the United Nations and a geneticist's murder, Danielle Laidlaw and Hawker follow a trail from Paris to Iran. Their hunt exposes a cult with the science and conviction to threaten humanity.

A NUMA research vessel is destroyed by a swarm of mysterious black particles in the Indian Ocean. Kurt Austin and Joe Zavala uncover a plan to control global weather, with millions of lives at risk.

FBI agent Kate Pfeiffer investigates disappearances linked to her husband's murder and finds a hidden war with the immortal Fallen. Her survival may depend on Christian Hanover, a centuries-old fighter searching for the truth about himself.

Kurt Austin and Joe Zavala uncover a scientist's breakthrough in zero-point energy, a discovery that could meet the world's needs or trigger devastating earthquakes. Their pursuit runs from Sydney to a deadly plot on a remote island.

A failed yacht rescue leaves Kurt Austin unsure whether an old friend and her children survived. His search leads into cybercrime, vanished scientists, trafficking, and a criminal network determined to control a brilliant security expert.

In 2117, a dying Earth depends on a terraformed Mars for survival. Soldier James Collins is caught between his military father's government, violent rebels, and powerful factions preparing to claim the red planet for themselves.

Kate Pfeiffer struggles with the consequences of her transformation as Christian Hanover continues his search for the Angel of Mercy. Their fight with the Fallen deepens when a weapon emerges that could change the ancient war.

After NUMA personnel are exposed to a deadly toxin, Kurt Austin and Joe Zavala search for a cure tied to Egyptian legend. A ruthless powerbroker's plans for a new empire make the mission even more dangerous.

An advanced aircraft vanishes over the South Pacific carrying exotic matter that could cause a global catastrophe if it warms. Kurt Austin and Joe Zavala race rivals through the Galapagos and South America to recover it.

Sea levels are climbing far beyond what melting glaciers can explain. Kurt Austin, Joe Zavala, and the NUMA team cross the globe to find the cause before a hidden scheme floods coastlines and destabilizes nations.

When explosions destroy Gulf oil rigs, Kurt Austin discovers bacteria that consume oil fields from within. The trail reaches back to vanished Mediterranean submarines, forcing NUMA to stop a biological weapon before energy systems collapse.

A vanished aviator, a sunken trawler, and lost Egyptian riches draw Kurt Austin into an international conspiracy. Working with MI5, NUMA races arms dealers and thieves determined to seize a priceless ancient treasure.

Kurt Austin and Joe Zavala head to Antarctica after a former NUMA colleague vanishes. A Nazi-era expedition, a violent storm, and a fast-growing artificial ice threaten to trigger a catastrophic new Ice Age.

A freighter carrying top-secret computers disappears in the western Pacific, sending Kurt Austin and Joe Zavala into a cyberwar. With a colleague held hostage, they must keep powerful technology away from rival hackers and governments.

A daring rescue leads Kurt Austin and Joe Zavala into a South American mystery tied to a lost fortune and a modern criminal network. From high peaks to deep water, they race to stop a plot that could spark chaos across borders.

A baffling incident near the bottom of the world draws Kurt Austin toward a secret buried in ice. With Joe Zavala, he uncovers a ‘desolation code’ that can unleash catastrophe—and enemies willing to kill to activate it.