 In "Viadukt" (1937) the bridge arches split from the bank as they refuse to be linked to a chain and are therefore rioting.Since 1938, Klee worked more intensively with hieroglyphic-like elements.The painting "Insula dulcamara" from the same year, which is one of his largest (), shows a white face in the middle of the elements, symbolizing death with its black-circled eye sockets.