A child's faith, a woman's grief, and a man's search

Sarah Johnson is a woman deep in grief over the loss of her only child, three-year-old Tamara. Six months' time hasn't lessened the pain. She left for work early one morning and hasn't been seen since. Her husband Paul, professor of languages and counselor at Arizona State University, also grieves but is moving on. How far on? When Sarah disappears, he's suspected of getting rid of her in favor of a luscious redhead. How can he convince the police he's innocent? And where―or when―on God's green earth did Sarah go?