In Ariel's Gift , Erica Wagner composes a running commentary on the poems in Ted Hughes's Birthday Letters . The commentary calls on Sylvia Plath's fiction, journals and letters, and on Hughes' few public statements after Plath's death, in order to shine a light on the poems. Wagner is particularly good, I think, on Hughes's sense of fate in the making of his and Plath's poems, and in the events that overtook them. Critics of Hughes may see the avowals of ignorance and helplessness in the Birthday Letters poems as evidence of blame-shifting and self-justification, but the poems themselves convey the ignorance and helplessness in a very palpable way. To enter the poems at all, one must enter them, suspending one's judgment. Wagner tries to be very fair-minded but it becomes clear in the course of her book that she is more sympathetic toward Hughes. The last chapter shows the pain that the living (Hughes and the children, Plath's mother Aurelia) have t...