Camber Castle from above in 1931: Malcolm Saville there in 1945

When they came up to the gap in the walls which once had been a gateway they saw that nothing but the central tower remained inside, Sheep were nibbling on the very ground where Henry VIII's garrison may have sat down to eat, ivy climbed the walls from which armoured sentinels had watched the Channel, and from the crumbling mortar of the keep lusty wallflowers were swaying in the wind. 

They stood for a moment in the big, grassy space. The sun beat down upon them, and they were sheltered, too, from the breeze which was rustling the leaves above them. The only sound was the monotonous baaing of the sheep and the ceaseless song of the larks overhead. 

Malcolm Saville, The Gay Dolphin Adventure, 1945