In Lisbon in 1904, a young man named Tomás discovers an old journal. It hints at the existence of an extraordinary artifact that -- if he can find it -- would redefine history. Traveling in one of Europe's earliest automobiles, he sets out in search of this strange treasure. Thirty-five years later, a Portuguese pathologist devoted to the murder mysteries of Agatha Christie finds himself at the center of a mystery of his own and drawn into the consequences...

After a mountainside massacre yields a grim message, Painter Crowe, director of Sigma Force, must join with Commander Grayson Pierce and an unlikely ally if he is going to get to the root of a conspiracy that stretches back to a lost prehistoric colony in America.

"Maybe it was the chance for an easy $2500. Or maybe it was the chance to examine a treasure trove of Anasazi pots ... or maybe it was just a slow day at his Old Town Albuquerque shop that prompted Hubie Schuze to be blindfolded and chauffeured to meet a reclusive collector looking for a confidential appraisal. Sure, it was an odd setup, but what could possibly go wrong? Hubie s devil-may-care attitude fades fast when he finds three of his own Anasazi...

King Tut's tomb has been discovered, but Egyptologist Ralph Trilipush finds himself in a far less spectacular position when he stakes everything on a scrap of hieroglyphic pornography. Halfway around the world, an Australian detective sets off on a globetrotting quest to find a murderer. These events, seemingly unrelated, are about to collide in a spectacular fashion.

A dealer in traditional Native American pottery, Hubie Schuze scours New Mexico in search of ancient treasures. In all his travels across the state, there is one place that Hubie hasn't been able to access: Trinity Site at the White Sands Missile Range. Deep within the range are ruins once occupied by the Tompiro people, whose distinctive pottery is incredibly rare and valuable. When an old associate claims to have a buyer interested in spending big...

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...

"To stop the world from burning, it's up to Sigma Force to uncover a secret buried at the heart of our planet. 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...

Set in the 1920s, adventurer Rick leads Egyptologist Evelyn and her brother Jonathan to mysterious Hamunaptra. While Johnathan is keen on finding the legendary Egyptian treasures, Evelyn wants to search for the Book of the Living, which would clarify a lot in historical knowledge about the ancient Egyptians. Unfortunately, they free Imhotep's mummy from his eternal prison. Imhotep, a former high priest to the pharoah, wants not only to use Evelyn's...

"Bianca St. Ives was recently put through the wringer, but she came out the same way she always does -- the way her father trained her to -- hungry for a fight. Still navigating the fallout from a shocking revelation that's left a network of assassins' crosshairs trained on her, Bianca's ready to take fate into her own hands. It's kill or be killed, and she's got her finger flush against the trigger. But as Bianca races to outmaneuver her tireless...

Charlie and her husband begin the winter with hopes for a honeymoon in a secluded New Mexico mountain cabin. But their plans are disrupted when police locate an old pawn ticket identifying the gun used in a five year old murder and trace the ticket back t