By Ashley Ross
December 14, 2014

On the third day of J.K. Rowling’s Harry Potter series ahead of Christmas, we take a trip to potions class with Harry and co. Sadly, Malfoy is there as well. Today’s riddle goes as such:

“His potions lessons are full of interesting things. With students keen to see what each day will bring. With his large moustache and rotund shape, who teaches this class after Professor Snape.”

“Slughorn” is the answer. But, like we learned from Rowling’s first riddle in the series, his full name won’t do the trick. Only “Professor Slughorn” will get you inside Harry and Ron’s double Potions class where they’re mixing up Felix Felicis, also known as liquid luck. The cauldrons and books in the classroom reveal extra surprises.

MORE: Reading Harry Potter Provides Clues to Brain Activity

It’s still a bit unclear what the famed author is actually doing with this roll out. Pottermore fans were promised new Potter content, but it seems scarce three days in. Perhaps Christmas will bring a more satisfying surprise. There’s still plenty of time for mischief to be managed.

Read next: J.K. Rowling’s Christmas Present to You Is More Harry Potter Stories

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