J.K. Rowling's mysterious tweets: What is she hinting at?

With a series of cryptic updates on Twitter, Harry Potter author J.K. Rowling has prompted frenzied speculation among her fans about her next project.

British writer JK Rowling, author of the Harry Potter series of books, posing during the launch of the new online website Pottermore in London June 23, 2011.

Suzanne Plunkett/Reuters/File

October 7, 2014

Despite being “very busy” at the moment, author J.K. Rowling can’t keep herself from dropping hints about a riddle she posted on Twitter yesterday that has Harry Potter fans scrambling.

It all started Monday when she tweeted this:

After a fan tweeted “Everytime @jk_rowling tweets I stop what ever I'm doing and analyze it for an hour,” Rowling started to tease: “See, now I'm tempted to post a riddle or an anagram. Must resist temptation... must work…”

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But she couldn’t help herself.

This, she followed with: “Something to ponder while I'm away X.”

Rowling let fans scream and sweat it out for a day – enough time for grandiose theories to sprout on Reddit and the like – then dropped a hint:

When a fan asked if that was the start of the film, Rowling said she was “Much warmer.”

Then she dropped this:

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Will those who were speculating about a Harry Potter comeback be disappointed? Apparently not, since fans are ecstatic just to be guessing. Expressions of praise and gratitude – all 140 characters or less – poured forth from Twitter users worldwide.

"@jk_rowling this riddle is seriously your greatest gift since the announcement of Pottermore. THANK-YOU <3," one fan tweeted. "@jk_rowling I want you to tell us but I don't want you to at the same time. I'm almost crying with excitement. You should do this more often."