Shy concludes Max Porter’s informal trilogy of short, poetic novels powered by pain and polyphony. First, in 2015, came Grief is the Thing with Feathers, in which a widowed Ted Hughes scholar is both shocked and comforted by the arrival of a croaking, crouching crow. Then, four years later, Lanny, which followed a young boy through village life, with appearances by the ancient spirit of Dead Papa Toothwort, and explored issues of alienation and isolation.