Information for The Valentine Letters at The Place, Bedford (Play). Based on the book Gepruft by Frances Zagni, the Second World War correspondence between Royal Air Force airman and Prisoner of War John Valentine and his wife Ursula. These letters provide an unprecedented insight in to how two people struggle to find solace and keep their hopes and love alive despite the anxieties of John's dangerous operational life, his three years behind barbed wire, and Ursula's endeavours raising a newborn under the constant threat of aerial attack.