It's not like J.K. Rowling has just been sitting around, resting on her Harry Potter money.
The author has published a handful of novels since Deathly Hallows was released in 2007. There was The Casual Vacancy, as well as her popular Cormoran Strike series, written under the pseudonym Robert Galbraith. They've just all been meant for adults.
Of Career of Evil, her latest, she told BBC Radio 2 Book Club, "It's definitely the darkest of the series so far. It's the only book I've ever written that has literally given me nightmares."
Still, we want another children's book! Rowling wrote a story that inspired the upcoming Harry Potter play, The Cursed Child, which has been billed as "the official eighth Potter story," set 19 years later.
And she wrote the scrreenplay for Fantastic Beasts and Where to Find Them, a spin-off set in the wizarding world of Harry Potter. Side note: Here is the just-released title art for Fantastic Beasts! Ahhh, we're so excited for it!
But she has yet to turn out another actual novel for children. Fear not…
"I have an idea for a children's book," she teased, offering no details about the plot. "Actually, I have written part of a children's book that I really love, so I'm definitely going to finish that. There will be another children's book."
In fact, Rowling promised that she'll write plenty more novels under her own name. "I'm not going to give you an absolute date because things are busy, and I've been writing a screenplay as well...which has been a lot of fun," she explained.
"I'd definitely write more novels as J.K. Rowling -- novels in the plural, I have so many ideas," she swore.
Now, find out what Daniel Radcliffe told ET about whether he will reprise his Harry Potter role anytime soon: