Greer Salt of Stellenbosch bought the first Harry Potter novel at a bargain bookshop 10 years ago for R10. The same book was recently put up for auction and was expected to fetch at least US$20 000. The rare edition of JK Rowling's Harry Potter And the Philosopher's Stone, published in 1997, is believed to be one of only 300 copies of the first printing of the first book in the series.