 Back in Germany in 1937, seventeen of Klee's pictures were included in an exhibition of "Degenerate art" and 102 of his works in public collections were seized by the Nazis.Klee suffered from an autoimmune disease, scleroderma, toward the end of his life, enduring pain that seems to be reflected in his last works of art.One of his last paintings, "Death and Fire", features a skull in the center with the German word for death, "Tod", appearing in the face.