Fireworks explode over a reproduction of Hogwarts Castle as the Los Angeles Philharmonic performs during a special preview opening of "The Wizarding World of Harry Potter" attraction at Universal Studios Hollywood on April 5. Reuters

You've been waiting nine years, and it's finally almost here: The release of the eighth "Harry Potter" book.

Technically, "Harry Potter and the Cursed Child" isn't a novel — it's a script for a play of the same name being put on in London. But for Potterheads around the world who grew up devouring the seven-part fantasy series, it's definitely a cause for celebration.

Written by J.K. Rowling, Jack Thorne and John Tiffany, "Cursed Child" is all about Harry as an adult. The synopsis references the fact that the Boy Who Lived is now a dad, husband and Ministry of Magic employee. "While Harry grapples with a past that refuses to stay where it belongs, his youngest son Albus must struggle with the weight of a family legacy he never wanted," it reads. "As past and present fuse ominously, both father and son learn the uncomfortable truth: sometimes, darkness comes from unexpected places."

The book doesn't come out until midnight July 31, but you'll probably want to order it early. Demand is going to be insane — in 2007, the final installment in the "Harry Potter" series sold 15 million copies in its first day on shelves. At one point, the British bookstore WH Smith was selling 15 copies every second, according to the World Record Academy.

Here's how to score your copy:

If you're in the United Kingdom, you can order a physical copy of "Cursed Child" online from stores like Waterstones, which has slashed the price in half to only £10 (about $13). Make sure to choose "Courier" or pick it up in-store so you can get the book the day it comes out. The book is available for about the same price at WH Smith.

If you're in the United States, you can nab a hardcover copy online from Barnes & Noble for $17.99. (Most Barnes & Noble stores are having midnight release parties, so be sure to check those out, too.) Books-A-Million is also selling the book for $17.99 with a note that it will ship July 31. Same for Target.

If you're in either or neither of those places, you can still order an e-book. According to Pottermore, "print and digital editions will publish simultaneously," so head over to Amazon to get the Kindle version for $14.99. Amazon will email you when the e-book is released. The e-book is the same price on the Google Play and iBooks stores.