.....was the night the wall was erected across Berlin. Miss Goldlthwait (who was sent to Germany to set up a post-war displaced persons camp for Russian refugees) prefaces the book by stating that she was ""thinking of a real place and real people."" Perhaps this accounts for the believability of her writing. Fourteen-year-old Hans Starrholm gropes for understanding as this final ominous barrier divides his city separating him from his mother who had crossed the border on her daily visit bringing food to his cousin Hannah in East Berlin. Petrified by his mother's continued absence he sneaks across the wall in search of her. After some harrowing near-escapes the reaches Hannah, who reveals that his mother (a pharmacist) has been smuggling sorely needed medicine to their parish. They go there only to find that the parish, too, has been divided by the wall and Hans' mother is being held in a detention camp. Urged by the Pastor to escape while there is yet time, Hannah elects to stay to help and Hans continues to seek his mother. When he eventually slips back into West Berlin alone, it is with adult purpose. Adventure that brings insight and understanding across the barricade.