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The first public preview of "Harry Potter and the Cursed Child" kicked off Tuesday evening, June 7. Around 1,500 lucky theatergoers were the first to see the hugely anticipated play at London's Palace Theatre in the West End.

Although plot details are being kept tightly under wraps, the official Twitter account for "Harry Potter and the Cursed Child" shares the first photo of Hogwarts School of Witchcraft and Wizardry. The picture shows Hermione and Ron's daughter Rose Granger-Weasley (Cherrelle Skeete) at the center stage, surrounded by the familiar banners of Gryffindor, Slytherin, Hufflepuff and Ravenclaw.

The first public preview of #HarryPotterPlay #CursedChild has just started. Welcome to Hogwarts! #KeepTheSecrets pic.twitter.com/cnDYxkUC7m

— Harry Potter Play (@HPPlayLDN) June 7, 2016

J. K. Rowling previously asked preview audiences to refrain from spoiling the play. Each audience member was given a special button that read #KeepTheSecrets. According to a theatergoer, the play was thrown into chaos after a live owl apparently escaped.

#HarryPotter #CursedChild 1st preview blooper! No spoilers, but... An owl just got loose in the theatre. Intermission owl hunt backstage!

— Josh Grisetti (@JoshGrisetti) June 7, 2016

Can't give much away but can't wait to see part 2 of @HPPlayLDN #CursedChild .Audience given #keepthesecret badges pic.twitter.com/ZuWdkaaN7o

— Baz Bamigboye (@BazBam) June 7, 2016

#CursedChild part one = Amazing. Like watching a book. Incredible. @HPPlayLDN

— Liam Garrahan (@LiamGarrahan) June 7, 2016

First preview of #CursedChild. No spoilers, but @jk_rowling has created a great story. Audience loved it. Me too. #KeepTheSecrets

— Matthew Lumby (@MatthewLumby) June 7, 2016

Cursed Child intermission quick review: VERY impressive magic happening on stage. Funny script. The story.. Where it���¢�¯�¿�½�¯�¿�½s heading���¢�¯�¿�½���¦ BIG things.

— Andrew Sims (@sims) June 7, 2016

All I will say is that was potentially the best thing I have ever seen... @HPPlayLDN #CursedChild #KeepTheSecrets pic.twitter.com/dbh37nKo2n

— Fraser Maxwell (@fjmaxwell) June 7, 2016

Interval. ITS MAGICAL. That's all I'm saying. Also, I am Scorpius. #CursedChild #KeepTheSecrets

— Ollie Grainger (@OllieGrainger) June 7, 2016

My adrenaline levels are starting to crash... Send Madame Pomfrey... That was so incredible. #KeepTheSecrets @HPPlayLDN

— Rebecca Holbourn (@2cajuman2) June 7, 2016

How do @JKro expect us to #KeepTheSecrets when all we want to do is rave bout how amazing #CursedChild was/is? pic.twitter.com/FS1l1Ki6yO

— Q (@AqilahZaiyanie) June 8, 2016

"Harry Potter and the Cursed Child" premieres on July 30 at the Palace Theater in London. The novelization of the script will be released on July 31, Harry Potter's birthday.