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J.K. Rowling says she suffered from a mild case of depression after delivering her last book in the Harry Potter series.
"It was this amazing cathartic moment - the end of 17 years' work," she said. But the British author is already back at work.
She says she's sad the Harry Potter series has ended but will not stop writing. "I'm sort of writing two things at the moment," she told USA Today.
"One is for children and the other is not for children."
