Calling all muggles, wizards and witches alike: Author J.K. Rowling has posed a riddle on Twitter and so far, neither brainpower nor magic has been able to crack it.

The adventure started innocently enough, with the “Harry Potter” author tweeting about how busy she’s been lately:

Very busy at the moment working on a novel, tweaking a screenplay and being involved in @lumos campaigns. Back when I’ve finished something!

— J.K. Rowling (@jk_rowling) October 5, 2014

She followed that up with a response to a fan:

.@peruseproject See, now I’m tempted to post a riddle or an anagram. Must resist temptation… must work…

— J.K. Rowling (@jk_rowling) October 5, 2014

It took roughly 14 hours, but it looks like Rowling ultimately gave in to that temptation:

Cry, foe! Run amok! Fa awry! My wand won’t tolerate this nonsense.

— J.K. Rowling (@jk_rowling) October 6, 2014

And just for good measure, she added:

Something to ponder while I’m away X

— J.K. Rowling (@jk_rowling) October 6, 2014

So is the big mystery about Rowling’s screenplay, presumably for the upcoming film “Fantastic Beasts And Where To Find Them,” or does it have something to do with her upcoming novel?

Reddit users soon discovered that the words “Newt Scamander” and “New York” are both hidden inside the tweet. Newt Scamander is the main character in “Fantastic Beasts,” and the film will be set in New York 70 years before the time of Harry Potter.

The rest of it, however, remains anyone’s guess (and that’s assuming the “Newt Scamander” and “New York” parts aren’t a red herring).

If you have a guess of your own — or if you think you’ve solved the riddle — be sure to post it in the comments.

(h/t Time)