..".a moving, suspenseful page-turner that's likely to become a classic of medical storytelling." --The Washington Post

New York Times science reporter Gina Kolata follows a family through genetic illness and one courageous daughter who decides her fate shall no longer be decided by a genetic flaw.

The phone rings. The doctor from California is on the line. "Are you ready Amanda?" The two people Amanda Baxley loves the most had begged her not to be tested--at least, not now. But she had to find out.

If your family carried a mutated gene that...