The last time Harry Potter cast a spell on us was in 2011, on the silver screen. It has been almost six years and Harry Potter is back in the two-part play called “Harry Potter and the Cursed Child,” written by Jack Thorne, based on a story by J.K. Rowling. The previews began on Tuesday and those who’ve seen it are bewitched by it. In fact, fans are so excited that Rowling has requested them not to spoil the secrets for those yet to see it.

As noted by The Guardian, Rowling addressed her fans and those attending the play at the Palace Theatre in the West End via a video message. “You’ve been amazing for years at keeping Harry Potter secrets so you didn’t spoil the books for readers who came after you,” she said in a video message. “So I’m asking you one more time to keep the secrets and let audiences enjoy Cursed Child with all the surprises that we’ve got to the story,” Rowling pleaded with her fans.

This is a very high profile theatrical event, without any doubt. The play picks up 19 years after Voldemort’s defeat. And Harry Potter, Ron Weasley, and Hermione Granger are the major characters in the play. So, there will be lots of secrets, surprises, twists and revelations. It will also undoubtedly be an emotional roller-coaster. Luckily, most fans understand Rowling’s concern. Many fans responded to Rowling’s tweet, saying they won’t spoil the two-part play. One fan suggested they all take an unbreakable vow.

In 2005, before the release of the sixth book “Harry Potter and the Half-Blood Prince,” Snape killing Dumbledore was leaked online before the book was published. Nothing of such magnitude has been leaked about the play yet.

The reviews by those who have seen the two-part continuation of the Harry Potter saga have been glowing, CBC News noted. All those insensitive and racist comments about a black Hermione have been unsuccessful, obviously. “It was utterly remarkable, just incredible,” Harry Potter fan Ollie Southgate said, as quoted by CBC News. “It’s a whole different version of everything that everyone loves about the books … The visual effects they’ve got is like nothing I’ve ever seen,” Southgate praised the production. The play will likely tour other countries in due course, Rowling said on Twitter.

The official synopsis for “Harry Potter and the Cursed Child” can be read at Pottermore.