Chris McCandless remains a somewhat ghostly presence even in this biography of his life. Although Krakauer uses frequent excerpts from Chris's personal journals, the reader always feels somewhat distanced, partly owing to his habit of writing about himself in the third person under an assumed name. Only Chris's final journal entries are written in the first person and signed with his real name, perhaps underscoring the shocking realization of first the possibility and then the certainty of his own imminent death. The tone of these final words is frightened at first, then rueful and courageous, and finally serene and reconciled. Other than these journal extracts, all of the information about McCandless is fragmentary and pieced together from the testimony of people who had met him on his journeys. Their accounts seem to paint him as an intensely bright and defiantly independent young man who clung to...