The Eye of God: A Sigma Force Novel
Released on 06.25.2013
The crash of a U.S. military research satellite in the remote wilds of Mongolia triggers an explosive search for the valuable cargo it holds: a code-black physics project connected to the study of dark energy, the energy connected to the birth of our universe. But the last blurry image from the falling satellite captures a chilling sight: a frightening look into the future, a view of a smoldering eastern seaboard of the United States in utter ruin.
Bloodline: A Sigma Force Novel
Released on 03.26.2013
A yacht bearing a young American couple is attacked by Somali pirates, leading to bloodshed and the violent kidnapping of the pregnant woman on board. To aid in her rescue from the lawless and war-torn jungles of coastal Africa, Sigma Force enlists a unique search team: former Army Ranger Captain Tucker Wayne and his military war dog, Kane. But what appears to be a straightforward mission turns into a fiery ambush and betrayal-for this most-valuable hostage is in fact the president's daughter.
Tracker: A Short Story Exclusive
Released on 06.05.2012
Off the streets in the medieval heart of Budapest, Captain Tucker Wayne and his war dog, Kane, rescue a mysterious woman fleeing three armed men. The secret she holds will unlock a terrible treasure, one steeped in blood and treachery, tied to a crime going back to the fall of Nazi Germany and a heritage of suffering and pain that reaches out from the past to wreak havoc today.
The Devil Colony: A Sigma Force Novel
Released on 06.21.2011
Deep in the Rocky Mountains, a gruesome discovery--hundreds of mummified bodies--stirs international attention and fervent controversy. Despite doubts about the bodies' origins, the local Native American Heritage Commission lays claim to the prehistoric remains, along with the strange artifacts found in the same cavern: gold plates inscribed with an unfathomable script.
The Skeleton Key: A Short Story Exclusive
Released on 05.31.2011
Seichan is ripped out of the Sigma series for an adventure all her own—but can she survive? The beautiful and elusive assassin wakes in a hotel in Paris with a deadly electronic collar fastened to her throat.
The Doomsday Key: A Sigma Force Novel
Released on 06.23.2009
Sigma Force confronts humankind's greatest threat in an adventure that races from the Roman Coliseum to the icy peaks of Norway, from the ruins of medieval abbeys to the lost tombs of Celtic kings. The ultimate nightmare is locked within a talisman buried by a dead saint—an ancient artifact known as the Doomsday Key.
The Last Oracle: A Sigma Force Novel
Released on 07.23.2008
From ancient Greek temples to glittering mausoleums, from the slums of India to the toxic ruins of Russia, two men must race against time to solve a mystery that dates back to the first famous oracle of history - the Greek Oracle of Delphi.
The Judas Strain: A Sigma Force Novel
Released on 07.23.2007
Operatives of the shadowy covert organization Sigma Force, Dr. Lisa Cummings and Monk Kokkalis search for answers to the bizarre affliction aboard a cruise liner transformed into a makeshift hospital. But a sudden and savage attack by terrorist hijackers turns the mercy ship into a floating bio-weapons lab.
Black Order: A Sigma Force Novel
Released on 07.23.2006
In the mountains of Nepal...in a remote monastery, Buddhist monks inexplicably turn to cannibalism and torture – while Painter Crowe, director of Sigma Force, begins to show signs of the same baffling, mind-destroying malady...and Lisa Cummings, a dedicated American doctor, becomes the target of a brutal, clandestine assassin.
Map of Bones: A Sigma Force Novel
Released on 07.23.2005
The crime is inhumanly cruel with horrific consequences both unthinkable and inevitable. During a service at a cathedral in Cologne, Germany, a band of armed intruders dressed in monk's robes unleashes a nightmare of blood and terror, ruthlessly gunning down worshipers and clergy alike. The killers haven’t come for the church’s gold and valuable artwork, but for a priceless treasure secreted within: the preserved bones of the Three Magi who once came to pay homage to a newborn savior. As they flee the carnage they have wrought, they carry a prize that could reshape the world.
Sandstorm
Released on 07.23.2004
A freak explosion in the British museum in London ignites a perilous race for an earth-shaking power source buried deep beneath the sands of history. Painter Crowe is an agent for Sigma Force, a covert arm of the Defense Department tasked with keeping dangerous scientific discoveries out of enemy hands. When an ancient artifact points the way toward the legendary “Atlantis of the Sands,” Painter must travel across the world in search of the lost city–and a destructive power beyond imagining.
Sigma Guide
Released on 06.05.2012
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