A Rare Specimen

The Narnian: The Life and Imagination of C. S. Lewis by Alan Jacobs. HarperSanFrancisco (San Francisco) xxvi + 432 pp., $25.95 cloth, $14.95 paper, 2005. J. R. R. Tolkien once told a future biographer of C. S. Lewis (1898–1963) that “You’ll never get to the bottom of...