"They’s a great big ol’ black cloud a-sailin’ over."
– John Steinbeck
The Grapes of Wrath, Chapter 26. This is said by one of the striking workers with Jim Casy. It is foreshadowing of Casy’s death a short time after this. It is one of the novel’s many example of color imagery being used by Steinbeck, with black suggesting mourning and death.