Please explain meaning of the line.. "The king saw red. Infact he nearly lost his head"

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Given below is the answer to your question.

'The king saw red' refers to the anger that filled the king when he heard the men accusing each other. They went on blaming the other person and this made the king angry. 'In fact he nearly lost his head' shows the confusion and the dilemma that he was faced with.

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