In 1933 Paul Klee’s work was branded as ‘Entartete Kunst’ (Degenerate Art) by the National Socialists and he was dismissed from his professorial post at the Düsseldorf Academy of Fine Arts. This led him, together with his wife Lily, to return to his ‘real home’ of Bern. Here his avant-garde art was not understood and Klee found himself in unasked for isolation. In 1935 Klee started to suffer from a mysterious disease. The symptoms included changes to the skin and problems with the internal...