Brad Meltzer

Cain killed Abel: the original murder. But the Bible is silent about one key detail: the weapon Cain used to kill his brother. It's a mystery that's never been solved. Until now. In Florida, Cal Harper comes face-to-face with his family's greatest secret: his long-lost father, who's been shot with a gun that traces back to an unsolved murder in 1932. What could that murder have to do with the biblical one? Father and son are suddenly thrown into a bloodthirsty quest for an ancient weapon, and the answer to a secret that people are dying to find. But closing in on them is a man tattooed with the mark of Cain - the world's first killer. In his pocket he carries the means of causing a horrifying death. And in his heart an insatiable desire for what he believes is his birthright . . .

"Six minutes from now, one of us would be dead. None of us knew it was coming." So says Wes Holloway, a young presidential aide, about the day he put Ron Boyle, the chief executive's oldest friend, into the president's limousine. By the trip's end, a crazed assassin would permanently disfigure Wes and kill Boyle. Now, eight years later, Boyle has been spotted alive. Trying to figure out what really happened takes Wes back into disturbing secrets buried in Freemason history, a decade-old presidential crossword puzzle, and a two-hundred-year-old code invented by Thomas Jefferson that conceals secrets worth dying for.

White House lawyer Michael Garrick has a relatively anonymous position at a very public address. That is, until he starts dating Nora Harston (secret service code name: Shadow), the sexy and dangerously irresistible daughter of the President. But the confident young attorney thinks he can handle the pressure. Until, out on a date, Nora and Michael see something they shouldn't. To protect her, he admits to something he shouldn't. And when a body is discovered and Michael is the suspected killer, he finds himself on the run. Now, in a world where power is an aphrodisiac and close friends carry guns and are under strict orders to risk their lives, Michael must find a way to prove his innocence.

Bored and disillusioned with their jobs as senior staffers to a respected congressman, Matthew Mercer and Harris Sandler become involved in the clandestine Zero Game, but when someone close to them turns up dead, they discover the sinister intent of the "game" and realize that they are intended to become the game's next victims. (Suspense)