From New York Times bestselling authors James Rollins and Rebecca Cantrell comes a dark story of murder, mystery, and a brotherhood steeped in a bloody past.

As a young reporter, Arthur Crane exposed the secrets behind the Orchid Killer, a cult murderer from the late '60s whose crimes blackened the end of the Summer of Love. Half a century later, Arthur wakes to find an orchid resting on his pillow, a symbol of death from a killer connected

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Commander Gray Pierce discovers his house ransacked, his pregnant lover missing; his best friend Monk's wife, Kat, is unconscious on the kitchen floor, and Kat's two daughters have vanished. Kat is in a semi-comatose state and cannot speak-- until a brilliant neurologist offers a radical approach to "unlock" her mind long enough to ask a few questions. Soon Sigma Force is on a frantic quest for answers to mysteries reaching back to the Spanish Inquisition...

"The Titan Project—an international research station off the coast of Australia—discovers a thriving zone of life in an otherwise dead sea. The area teems with a strange bioluminescent coral that defies science, yet holds great promise for the future. But the loss of a military submarine in the area triggers a brutal attack and sets in motion a geological disaster that destabilizes an entire region. Massive quakes, volcanic eruptions, and deadly...

Following the fall of Baghdad, two Iraqi boys stumble upon armed men looting the city zoo. The floodgates have been opened for the smuggling of hundreds of exotic birds, mammals, and reptiles to Western nations, but this crime hides a deeper secret. Amid a hail of bullets, a concealed underground weapons lab is ransacked and something even more horrific is set free. Seven years later, Louisiana state veterinarian Lorna Polk stumbles upon a fishing...

An earthquake in Masada, Israel, kills hundreds and reveals a tomb buried in the heart of the mountain. A trio of investigators: Sergeant Jordan Stone, a military forensic expert; Father Rhun Korza, a Vatican priest; and Dr. Erin Granger, a brilliant but disillusioned archaeologist are sent to explore the macabre discovery, a subterranean temple holding the crucified body of a mummified girl. But a brutal attack at the site sets the three on the run....

"An alliance embarks on a dangerous journey to uncover the secrets of the distant past and save their world in this captivating, deeply visionary adventure from #1 New York Times bestselling thriller-master James Rollins. A gifted student foretells an apocalypse. Her reward is a sentence of death. Fleeing into the unknown she is drawn into a team of outcasts: A broken soldier, who once again takes up the weapons he's forbidden to wield and carves...

At Princeton University, a famed geneticist dies inside a biohazard lab. In Rome, a Vatican archaeologist is found dead in St. Peter's Basilica. In Africa, a U.S. senator's son is slain outside a Red Cross camp. The three murders on three continents bear a horrifying connection: all the victims are marked by a Druidic pagan cross burned into their flesh. The bizarre murders thrust Commander Gray Pierce and Sigma Force into a race against time to solve...

Off the coast of Brazil, a team of scientists discovers a horror like no other, an island where all life has been eradicated, consumed and possessed by a species beyond imagination. Before they can report their discovery, a mysterious agency attacks the group, killing them all, save one, an entomologist, an expert on venomous creatures, Professor Ken Matsui from Cornell University. Strangest of all, this inexplicable threat traces back to a terrifying...

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.

Twenty years after a wealthy British financier disappears near the site of a lost fabled city, the man's daughter leads an expedition of scientists in search of the city, which harbors a powerful but dangerous energy source with the potential to both fuel and destroy the planet.