According to Contact Music, author J.K. Rowling's father is "unleashing secret details from her massively popular Harry Potter novels, in an attempt to raise over $200,000 (GBP125,000)."
In the letter written at the start of Harry Potter and the Goblet of Fire, JK reveals character Ron Weasley is based on a family friend called Ronald Ridley - something the author was keen to keep private.
It reads, "Dear Dad, If I had said Ronald (Weasley) Ridley, they would have tracked the poor bloke down... but that's why Ron's called Ron, of course!"
The sale will take place at Sotheby's in New York on Dec. 10, 2003.
[Editor's note: My question is why is he trying to raise cash - is it for a good cause?]