In “Bloodline” (William Morrow, $27.99) by James Rollins, the president's pregnant daughter and her husband try to flee after she receives threats against her unborn child. But on a private yacht off the African coast, they're attacked, her husband is murdered, and she's taken prisoner.
Strangely, there aren't any ransom demands. The reasons for the kidnapping are much more sinister.
Sigma Force, a secret military operation, is called in and finds it's facing an old nemesis, the Guild. Why would the Guild want this particular unborn child? The answer goes back centuries to a staff that may hold the key to eternal life.
It's been in one family, a ruthless family, and its research, while plausible, may make you queasy. Sigma, while trying to trace the president's daughter, stumbles on the vastness of these experiments, neuro-robotics, organ trafficking and the search for immortality.
We also meet a new character, actually two, an ex-Ranger Tucker Wayne and his war dog Kane. The action is continuous. The questions raised are thought-provoking, and Kane is one heck of a dog.
— John Harrington