For fans of the boy wizard, this could be the most coveted copy of all the Harry Potter books in the world.
A first edition copy of Harry Potter and the Philosopher's Stone that contains author J.K. Rowling's notes and original illustrations fetched 150,000 pounds (NZ$227,415) at a London auction on Tuesday (local time).
Sotheby's said the work, offered as part of a charity book sale jointly organised with the English PEN writers' association, was sold to an anonymous bidder by telephone.
Rowling peppered the book with many personal annotations, including editorial decisions, comments on the process of writing and a note on how she came to create the game of Quidditch.
She also drew about two dozen illustrations in the copy, including a sleeping baby Harry on a door step and an Albus Dumbledore Chocolate Frog card.