Bloodline (A Sigma Force Novel)
Released on 06.26.2012
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 the aid of a unique search team: a 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.
The Devil Colony (A Sigma Force Novel)
Released on 06.21.2011
Deep in the Rocky Mountains, a gruesome discovery—hundreds of mummified bodies—stir international attention and fervent controversy. Despite doubts to 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 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 (A Sigma Force Novel)
Released on 07.23.2004
An inexplicable explosion rocks the antiquities collection of a London museum, setting off alarms in clandestine organizations around the world. And now the search for answers is leading Lady Kara Kensington; her friend Safia al-Maaz, the gallery’s brilliant and beautiful curator; and their guide, the international adventurer Omaha Dunn, into a world they never dreamed existed: a lost city buried beneath the Arabian desert.
