"The DeMoe family has the most devastating form of [Alzheimer's] that there is: early onset Alzheimer's, an inherited genetic mutation that causes the disease in 100 percent of cases, and has a 50 percent chance of being passed onto the next generation. Of the six DeMoe children whose father had it, five have inherited the gene; the sixth, Karla, has inherited responsibility for all of them. But rather than give up in the face of such news, the DeMoes have agreed to spend their precious, abbreviated years as part of a worldwide study that could utterly change the landscape of Alzheimer's research and offers the brightest hope for future treatments--and possibly a cure"-- Provided by publisher.