Sigma Force novels

During midnight mass, the massive gothic cathedral in Cologne, Germany is ransacked by armed monks, ancient relics are stolen, and hundreds of people are murdered. The Vatican secretly requests assistance from the U.S. Dept. of Defense Sigma Force. Commander Gray Pierce and his team begin a harrowing race against a heretical gnostic sect seeking to discover the true nature of the missing bones of the magi

From the depths of the Indian Ocean, a horrific plague has arisen to devastate humankind-unknown, unstoppable... and merely a harbinger of the doom that is to follow. 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...

Commander Gray Perce and the Sigma Force confront 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--and a secret that has already claimed the lives of a famed geneticist, a Vatican archaeologist, and a...

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 military research station buried in the remote Sierra Nevada Mountains of Northern California broadcasts a frantic distress call that ends with a chilling order: "This is sierra, victor, whiskey. There's been a breach. Failsafe initiated. No matter the outcome: Kill us ... kill us all." The site is part of TECOMM, the U.S. Army Test Command. When help arrives to investigate, they discover that everyone in the lab is dead -- not just the scientists,...

Two years after vanishing into the Sudanese desert, the leader of a British archeological expedition, Professor Harold McCabe, comes stumbling out of the sands, frantic and delirious, but he dies before he can tell his story. The mystery deepens when an autopsy uncovers a bizarre corruption: someone had begun to mummify the professor's body--while he was still alive. His strange remains are returned to London for further study, when alarming news...

Arriving home, Commander Gray Pierce discovers his house ransacked, his pregnant lover missing, and his best friend's wife, Kat, unconscious on the kitchen floor. His one hope to find the woman he loves and his unborn child is Kat, the only witness to what happened. But the injured woman is in a semi-comatose state and cannot speak. --

"It begins in Africa... A United Nations relief team in a small village in the Congo makes an alarming discovery. An unknown force is leveling the evolutionary playing field. Men, women, and children have been reduced to a dull, catatonic state. The environment surrounding them--plants and animals--has grown more cunning and predatory, evolving at an exponential pace. The insidious phenomenon is spreading from a cursed site in the jungle -- known...