June 18, 2010 at 01:00 PM EDT

A 64-page, handwritten tribute from Mark Twain to his daughter sold at a Sotheby’s auction Thursday for $242,500, almost doubling pre-sale estimates, according to Yahoo! News. Twain’s daughter, Olivia “Susy” Clemens, died of spinal meningitis at the age of 24 after inspiring some of his stories and writing her own biography of her father.

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