Glenn Cooper Books in Order

In New York City, victims of the “Doomsday Killer” receive postcards predicting the exact date of their deaths before they’re murdered. Burned-out FBI profiler Will Piper’s hunt for the killer uncovers an eighth-century monastery, a buried library of death dates, and a government secret hidden in the Nevada desert.

A single lost volume from the Library that records every person’s death date resurfaces at a London auction, drawing retired FBI agent Will Piper back into danger. Chasing the *Book of Souls* leads him through centuries of secret history, from medieval scribes to Nostradamus and Shakespeare—and back to the Library’s ruthless guardians.

After a fire in a secluded French abbey reveals a damaged medieval manuscript, scholar Hugo Pineau and archaeologist Luc Simard follow its map to a vast prehistoric cave complex. Their discovery of a mysterious “tenth chamber” sparks accidents and murders that suggest someone will kill to keep its secret buried.

As a young archaeologist in the Roman catacombs, Elisabetta Celestino discovers skeletons with tails and cryptic astrological symbols, only to see her dig abruptly shut down. A decade later, now a nun, she’s dragged back into a brutal conspiracy that links an ancient prophecy, shadowy “devils,” and the fate of the modern Vatican.

FBI agent Cyrus O’Malley hunts a strangler who drills a pinhole in each victim’s skull, unaware the case is tied to Alex Weller, a scientist obsessed with reliving his own near-death vision. As a radical brain experiment spreads worldwide, their collision could change humanity’s relationship with death.

Years after exposing the secret Library that predicts every person’s death date, retired FBI agent Will Piper is hiding in Florida as the world counts down toward a prophesied end date. When a new killer emerges and his son vanishes, Will must confront the Library’s last, terrifying secrets.

Modern-day grail hunter Arthur Malory sees his closest friends murdered after a breakthrough discovery tied to his ancestor, Sir Thomas Malory. Following cryptic clues across Jerusalem, Cornwall, Spain, and a French physics lab, he chases a relic that could rewrite faith and science.

When a record-breaking run at a giant London particle collider goes wrong, physicist Emily Loughty vanishes and a brutal stranger appears in her place. Security chief John Camp volunteers to follow her through a tiny “pinhole” into a hellish mirror world called Down.

The connection between Earth and Down has blown wide open, unleashing murderous armies from the afterlife into the streets of London. As martial law takes hold, John Camp and Emily Loughty lead a final, desperate mission below to sever the expanding floodgate.

After a particle-collider experiment near London turns a pinpoint rift into a gaping portal, dozens of innocent people are swept into the deadly realm known as Down. Security chief John Camp and physicist Emily Loughty must return to rescue them—and seal the breach.

When a young Italian priest develops bleeding wounds like Christ’s, the pope asks Harvard professor Cal Donovan to investigate. As Cal probes the mystery of the stigmata, a neo-Nazi cult hunts a legendary holy relic and prepares a catastrophic attack.

Three teenage girls on different continents are inexplicably pregnant, all named Mary and all confirmed virgins. Summoned by Pope Celestine, Cal Donovan races to meet them, only to face disappearances, media frenzy, and a mystery that could shake Catholicism itself.

While researching in the Vatican archives, Harvard scholar Cal Donovan uncovers evidence of a massive unpaid loan Pope Pius VIII took from a Jewish banking dynasty. As interest compounds into billions, church insiders will do anything to erase the debt—and Cal.

Decades after Cal Donovan’s archaeologist father is murdered in Iraq, his mother dies in a staged break-in and a strange obsidian stone surfaces among her things. Cal’s hunt for the so-called showstone draws him into a deadly struggle over its visionary power.

Neurologist and single father Jamie Abbott helps design a breakthrough Alzheimer’s treatment, only to see a lab shortcut unleash a contagious virus that erases memories. As society unravels and his young daughter forgets him, Jamie races cross-country to join the one colleague who may hold the cure.

On holiday in Italy, a family vanishes without a trace, only for their two young daughters to reappear four years later, unchanged. Retired CIA officer Marcus Handler investigates, uncovering a disturbing explanation that ties the impossible case to his own past.

Harvard professor Cal Donovan is summoned by the pope to verify whispers of a lost apocalyptic prophecy. His search from Lisbon to Rome and beyond pits him against ruthless rivals who will kill to unlock—or bury—its catastrophic message.

Cal Donovan is drawn back into Vatican intrigue when his former student Samia uncovers a fragment of the Gospel of Mary Magdalene suggesting she was Peter’s wife and successor. As a new pope elevates Sister Elisabetta to a history-making role, powerful enemies will kill to seize—or silence—the explosive papyrus.

In the underground city of Derinkuyu, archaeologist David Birch uncovers an impossibly advanced bronze mechanism etched with Greek inscriptions and a map of the world. With technologist Eleni Lillakis, he chases legends of a “Destiny Machine” while ruthless rivals close in on a device that may shape humanity’s future.

When Pope John XXIV dies and the cardinals enter the Sistine Chapel to elect his successor, the world waits for white smoke that never appears. Covering the conclave for television, Cal Donovan is pulled into a frantic hunt for the vanished electors and a medieval order determined to purge the Church in blood.

In ancient Nineveh, royal physician Mannu-ki-Ashur breaks a taboo ritual to leap through time and save the woman he loves from a mysterious poison. Landing in modern London, he teams up with Assyriologist Kate Mayne to outrun assassins from his past and discover a cure that bridges empires and centuries.

Cardinal Anthony Budd is a quiet reformer whose name unexpectedly emerges during a deadlocked papal conclave. As Pope Innocent XIV, he must steer a divided Church while guarding a deeply personal secret—one a shadowy enemy is ready to expose, whatever the spiritual and political cost.