Ted Hughes' Crow marked his return to poetry following the suicide of Sylvia Plath, a cataclysm that can be felt in that collection's violent rupturing of form. Borne of his obsession with Hughes, Max Porter's début appears at first to confront bereavement more directly. A woman has died suddenly. In their London flat, her husband and young sons cling to the disordered remnants of family life. We hear their voices in alternating passages: Dad is immersed in grief; the boys, profoundly hurt, orbiting a barely understood absence. Enter Crow, an ancient trickster of inscrutable motives (as he was for Hughes), and here a superbly voiced embodiment of natural ferocity. Porter has been daring in shaping this extraordinary book, but its force is in its almost unbearably proximate examination of loss.