Offill's slender and cannily paced novel, her second, assembles fragments, observations, meditations and different points of view to chart the course of a troubled marriage. Wry and devastating in equal measure, the novel is a cracked mirror that throws light in every direction - on music and literature; science and philosophy; marriage and motherhood and infidelity; and especially love and the grueling rigors of domestic life. Part elegy and part primal scream, it's a profound and unexpectedly buoyant performance