"From New York Times bestselling author Patti Callahan comes an exquisite novel of Joy Davidman, the woman C. S. Lewis called 'my whole world.' When poet and writer Joy Davidman began writing letters to C. S. Lewis-known as Jack-she was looking for spiritual answers, not love. Love, after all, wasn't holding together her crumbling marriage. Everything about New Yorker Joy seemed ill-matched for an Oxford don and the beloved writer of Narnia, yet their...