While Suzy Slade, the fifteen-year-old who tells the story [of Love is a Missing Person], is a strongly delineated character, she functions primarily as the commentator on the problems of the other people with whom she is involved…. This is-one of Kerr's best, honest and poignant and perceptive. She gives no easy answers to the intricate problems in the lives of her characters, offers no lulling conclusions. The characterization and the dialogue are convincing and trenchant; while the ending is (as it was in Is That You, Miss Blue?) left open … it is the right ending, but what is left is not bitterness, it is an aching compassion. (p. 48)