There is no author who does as good a job keeping their fandom up-to-date as J.K. Rowling.

The Harry Potter author is constantly making headlines through her universe-expanding and clarifying tweets and interviews. In 2015, Rowling continued to prove that there's much more to discover about the Potter-verse.

Below, we've pulled some of the most interesting, funny and mind-blowing (No-Maj? Seriously?) reveals Rowling made in 2015.