Cotton Malone (Diana Gabaldon) Books in Order

When the sister of Sweden’s king is kidnapped, the ransom demand targets an unlikely object: the Codex Gigas, an eight-hundred-year-old manuscript nicknamed the Devil’s Bible. Cotton Malone and Cassiopeia Vitt must rescue the princess and protect the book as rival nations and old enemies close in.

Called in to help the Swiss Guard quietly investigate a German cardinal, Cotton Malone uncovers hidden cash and hints of a sixteenth‑century document called the Pledge of Christ. His search through Germany, Siena, and Florence collides with a modern fight over Italy’s leadership and the future of the papacy.

Doing a favor for a CIA friend, Cotton Malone quietly watches a young banker in Luxembourg connected to the shadowy Black Eagle Trust, a Cold War stash of looted gold. When assassins strike, he’s drawn into a battle over who will control that secret fortune and the leverage it brings.

Luke Daniels infiltrates a Bavarian separatist group while Cotton Malone tracks a prince plotting to unseat his brother. Their paths converge around King Ludwig II’s rumored search for a new kingdom and a nineteenth‑century deed that could give modern powers a legal claim to contested land.

Competing candidates for Germany’s chancellorship send Cotton Malone and Cassiopeia Vitt digging into the last hours of Hitler’s regime. From Chile to South Africa to Swiss vaults, they chase evidence about Nazi escapes, hidden wealth, and a secret that could tilt European politics toward extremism.

After witnessing the theft of a holy relic in Bruges, Cotton Malone is sent to steal the Holy Lance from a Polish shrine as entrance fee to a secret auction. There, compromising files on Poland’s president are for sale to the highest bidder, including Russia and the U.S.

Working a quiet job for British intelligence, Cotton Malone finds a murdered dealer and rumors of long-lost letters between Winston Churchill, Mussolini, and the Vatican. His search collides with rival factions inside the Knights of Malta and a struggle over the choosing of the next pope.

At a Scottish castle hosting a rare book sale, Cotton Malone chases a stolen grimoire and touches a ring of ancient stones. He wakes in the eighteenth century Highlands, face to face with Jamie Fraser, and must survive long enough to find his way back—or decide not to.

Looking back on his first mission, Cotton Malone recalls being a young Navy lawyer roped into an off‑the‑books investigation of Martin Luther King Jr.’s assassination. A rare coin and a cache of files reveal that the truth behind the killing is far murkier than the official story.

An assignment for the Smithsonian draws Cotton Malone into the buried caches of the Knights of the Golden Circle, a secret society that stole and hid vast quantities of gold. Modern heirs are fighting over the treasure while a ruthless politician plots to use it for power.

Cotton Malone’s Siberian mission uncovers a Cold War weapon long thought mythical and a secret American plan to turn Canada into the fourteenth colony. As a Russian hardliner moves to exploit both, Cotton races toward Washington to prevent a decapitation strike on the U.S. government.

Tax records from the 1930s, a mysterious painting, and clues hidden on the dollar bill send Cotton Malone chasing a renegade North Korean agent. If the evidence he carries reaches the public, it could prove the federal income tax illegal and crash the American economy.

A missing Justice Department agent and a secretive Utah sect draw Cotton Malone into a struggle over Abraham Lincoln’s legacy. Hidden documents about secession could be used to justify tearing the United States apart, and Cotton must decide how far he’ll go to defend the union.

On an Amazon river cruise, Cotton Malone teams up with Sigma Force commander Gray Pierce to stop a rogue botanist. Their target wants to sell a rare orchid that produces a deadly neurotoxin, and the buyers aren’t worried about mass casualties.

Asked to courier a simple package to London, Cotton Malone stumbles onto a scheme that links present‑day British politics with an old lie about the Tudor line. This novella bridges adventures, hinting at the deadly secrets waiting in The King’s Deception.

Escorting a teenage fugitive to London as a favor to his old boss, Cotton Malone sees both the boy and his own son vanish. The disappearance leads into a CIA game built around a shocking theory about Queen Elizabeth I, Irish independence, and modern-day blackmail.

After his brother‑in‑law dies in a suspicious diving accident off Haiti, Cotton Malone goes to investigate. He discovers the wreck of Columbus’s flagship, the Santa Maria, and finds himself caught between Israeli intelligence and deadly rivals obsessed with the treasure that went down with the ship.

After thwarting an assassination attempt on the U.S. president in Manhattan, Cotton Malone tangles with the Commonwealth, a secret brotherhood of modern pirates. To stop them, he must crack a cipher tied to Thomas Jefferson and expose a hidden constitutional clause with explosive power.

Jonathan Wyatt, a former agent known as the Sphinx, has spent years plotting revenge on Cotton Malone. Chasing a rumor of Nazi gold in a remote South American village, he uncovers a secret tied to Martin Bormann, Eva Braun, and a child whose existence could rewrite a dark chapter of history.

A chilling video of Cassiopeia Vitt being waterboarded drags Cotton Malone into a race that stretches from European cathedrals to China’s underground tombs. The key is an artifact linked to ancient Chinese oil technology, and whoever controls it could reshape the world’s energy future.

A terrorist bombing pulls Cotton Malone into billionaire Henrik Thorvaldsen’s private vendetta against the man he blames for his son’s death. As they follow Napoléon’s hidden fortune through London and Paris, Cotton must choose between friendship and stopping a financial plot that could rock Europe.

Searching for the truth about his father’s death on a secret submarine mission, Cotton Malone joins forces with two German sisters whose own parent vanished on the same boat. Clues from Charlemagne’s tomb and Nazi expeditions lead them toward Antarctica and a deadly naval cover‑up.

After a brazen arson attack in Copenhagen, Cotton Malone and Cassiopeia Vitt chase stolen medallions tied to Alexander the Great. Their hunt uncovers a Central Asian dictator with a cache of designer plagues and a ruthless plot that could trigger a new world war.

When kidnappers target Cotton Malone’s teenage son, they demand the one thing only Malone knows—the route to the lost Library of Alexandria. To save his child, he races from Denmark to the Middle East through a conspiracy that could ignite the modern Holy Land.

Former Justice Department agent Cotton Malone is pulled out of his quiet Copenhagen bookshop when his ex‑boss is attacked while chasing a clue to the Knights Templar’s lost treasure, sending them across Europe after secrets that could shake the church.