"Harry Potter Prequels", created by J. K. Rowling, is a story of about 800 words handwritten on a card. The card was signed by J. K. Rowling and signed on June 11, 2008. Three similar cards by other authors are being auctioned together, with proceeds going to charity. The time limit is set three years before Harry Potter was born, and the story retells the adventures experienced by Sirius Black and James Potter.