Harry Potter and the Cursed Child biggest seller of decade so far
The book of the script of Harry Potter and the Cursed Child has disappeared off shelves in the biggest single week of sales in the UK this decade.
The print version of the West End play, which was published on July 31, has already sold more than 680,000 copies in Great Britain.
The previous record holder in the past 10 years was Fifty Shades of Grey in 2012, with 664,478 print copies sold, according to Nielsen BookScan.
Bookshops around the country celebrated the release of the Harry Potter book, which contains parts one and two of the script complete with stage directions, with midnight parties.
Set 19 years after the events of the seventh and final book, The Cursed Child brings back the wizard, now grown up and an employee at the Ministry of Magic. Harry and his wife Ginny Weasley wave their youngest son Albus Severus, named after former Hogwarts headmaster Professor Dumbledore and Potions guru Professor Snape, off to their old wizarding school.
Once there, Albus struggles with the weight of his family legacy and goes to extreme and dangerous lengths to right the wrongs of the past.
The two-part play stretches over five hours and was co-devised by Harry Potter creator JK Rowling, written by Jack Thorne and directed by John Tiffany.
It opened at the Palace Theatre on July 30 after nearly eight weeks of previews.
Kate Skipper, buying director at Waterstones, said: "Our sales for Harry Potter and the Cursed Child script book have been phenomenal. There's no doubt about it, this will be our biggest book of the year."