In this provocative, gripping, and startling novel, bestselling author Ben Bova delivers a knockout read with his trademark blend of cutting-edge science and unrelenting suspense. Some see stem-cell research as mankind's greatest scientific breakthrough; others, a blasphemous attempt to play God. Suddenly, the possibility of immortality exists. Two brothers, both doctors, stand on opposite sides of the controversy. To Arthur Marshak, his work is a momentous gift to humanity. To Jesse Marshak, it is a curse. And between them stands a beautiful, remarkable woman that both brothers will do anything to save. Somehow, before it's too late, Arthur and Jesse must bridge the gap that divides them . . . on an issue that could mean nothing less than life or death for millions.
