The countdown to the release of Harry Potter and the Cursed Child at midnight on Sunday, 31 July has officially begun and it comes as no surprise that it's already breaking records.
According to Amazon and Barnes and Noble, the new Harry Potter book is the most pre-ordered book since Harry Potter and the Deathly Hallows which sold 15 million copies worldwide on its first day in 2007.
'We expect it to be our biggest-selling book of the year,' says Mary Amicucci, chief merchandising officer at Barnes & Noble.
And the new book is the most preordered book of the year for Amazon, in both print and ebook format.
'I could easily see young fans adapting to the format and using it to act out the play on their own,' says Amazon Books Editor Seira Wilson.
While Harry Potter and the Cursed Child is being referred to as the eighth story in the Harry Potter series, it's not actually written by J.K.Rowling.
The mastermind behind the new Potter book is actually Skins screenwriter Jack Thorne, who has written the two-part play officially launching in London's West End on Saturday – the day before the script's release.
Wands (and purses) at the ready, Potter fans.