Return of the Eagles — James Follett

It's the last chance for the PoWs to escape . . . It is 1945 and the end of war spells new problems for Otto Kruger and his fellow PoW officers at Grizedale Hall in the Lake District. Some, such as the V2 rocket scientist Eric Hoffmann have terrible secrets to conceal from the British or face the gallows. Mark Schiller, a partially blinded submarine pilot, has no desire to return home just yet, having learned about a pioneering eye surgeon in London.