Orphans of war: Once the Deed is Done, by Rachel Seiffert, reviewed

In Rachel Seiffert’s searingly beautiful fifth novel, the author returns to Germany, 1945 – ground she previously explored in The Dark Room, her Man Booker-shortlisted debut. Once the Deed is Done opens with a boy, Benno, looking out of his window at night, having been woken by sirens from the munition works.