'I can't afford to come back from the dead.' Annabelle has had many names in her life - Sally, Cindy, Lucille. Though her father moved her from city to city from the age of ten, changing names, houses, careers and histories every few months, Annabelle never knew what they were running from. Now in her thirties, with both parents dead, she's settled in Boston. But old habits die hard and she still looks over her shoulder when she leaves her apartment, still blends in with the crowd on the subway. Then at the Boston State Mental Hospital a multiple grave is discovered. Six young girls left to die in an underground chamber decades ago, while their captor looked on. When her original name appears in the paper, wrongly identifying her as one of the dead girls, Annabelle finally knows. This was the work of the monster her father fled from. But the killer is still on the loose. And he's looked for her for a very long time. Bobby Dodge has been haunted by the Catherine Gagnon case for years. It nearly cost him his job and his sanity. As a child, Catherine was also held prisoner underground, like the victims in this latest case. But Catherine's captor was in prison when these girls were taken. Yet the similarities are too numerous to be just coincidence...

Timothy Van Bender, Yale graduate and hedge fund manager in Palo Alto, lives a magical life: his business mints money; he wife, Katherine, is beautiful and charming; his young sexy secretary, Tricia, greets him each morning with a flirtatious smile. Then, one Tuesday, everything changes. Timothy wakes to learn that his hedge fund has lost $24 million on a bad bet against the Japanese Yen. Timothy decides to double down and bet again. But the Yen keeps climbing, and his business investors start asking questions. With his company on the brink of collapse, he gets a call from his wife, who phones to say goodbye, moments before jumping off a cliff at Big Sur to her death. Timothy can't believe it, and nor, for that matter, can the local police. And that's when his troubles start. As the police investigate Timothy, he investigates his dead wife's secrets. But when Tricia shows up on Timothy's doorstep, claiming to be his dead wife, and knowing secrets that only Katherine could know, Timothy's not sure what, or whom, to believe. Has he been given a second chance at happiness or is he being played for a fool in an elaborate scam that may cost him his life?

Go to the ends of the earth and back with the elite scientists of Sigma Force as they race to crack the ultimate mystery of mankind, a quest that will save or destroy us. From the frozen peaks of the Himalayas to the diamond fields of the Congo, from the subterranean labs of a lost era to the glittering halls of the Smithsonian, Sigma Force will face its most cunning adversaries, its most daunting challenges, and its most dire threat to unravel our most perplexing scientific mystery - the origins of life - a secret locked within cryptic runes. And the very future of mankind will belong to the victor. For any hope of success, former U.S. Navy SEAL Painter Crowe, head of the counterespionage team, must make a pact like no other: to align Sigma Force with an old enemy. And it will be up to Commander Gray Pierce to find the balance between salvation and damnation, even it if means sacrificing those closest to him. But victory is far from certain, for there are some riddles that even the greatest minds were never meant to solve...