There's also a twist: the brother whose passing inspired this story, Martin, is Saul's identical twin. Woven through the account of the one's decline and death is the other's attempt to grapple with the looming loss of half his being an intellectual and spiritual exercise that feeds into society's fascination with the mystery of what it means to be a body double, a "superior freak."

The book's first third covers the boys' ragamuffin upbringing in Jewish-immigrant Brooklyn before, during and after the Second World War; their precocious early years as voracious readers; the determined (and sometimes ferocious) development of distinct personalities; and their eventual estrangement as they enter adulthood and move into marriage, parenthood and quite separate careers (Martin as a leftist specialist in Latin American studies, Saul as a businessman with moderate to conservative politics). But when "Marty" reveals his illness to "Sauly" in 1971, the near-mystical bond of their boyhood years is renewed even more so by the early 1990s, when it becomes obvious that the one brother's best hope for survival is through receiving the freely given bone marrow of the other, a harrowingly painful procedure for both men that gives one just a couple more years of life. Copyright 2001 Cahners Business Information, Inc. From Booklist When Saul Diskin's twin brother, Marty, announced that he had leukemia, the crisis drew the two together. Saul chronicles the heartfelt struggles that he and his brother shared as Marty fought the disease. Growing up in New York, the siblings separated after high school, each struggling to establish his personal identity. They both got married and had families--in different parts of the country. But once the leukemia was diagnosed, the two brothers found a special strength between them. Because he was genetically identical to Marty, Saul was able to help his brother by donating bone marrow.