Part mystery, part love story, part report from the medical front in the United States today, Riptides relates the fast-onset brain cancer that ripped through a strong, healthy man and led to his death four months later at the age of fifty-six. The book is a searing chronology of the effects of devastating illness, of being caught in the maw of hospitals, of unthinkable decision-making and small, unexpected solaces. Tightly written, fact-based, it is never maudlin, and it offers an element of hope without sentimentality.

Riptides is a harrowing read. The writing is honest and...