One thing Jo says she knows for sure is this: Love is the most powerful thing of all. This is a central theme that comes across in all the Harry Potter books.
"Love wins," she says. "It does win; we know it wins. When the person dies, love isn't turned off like a faucet. It is an amazingly resilient part of us."
Jo says she's incredibly proud of Harry Potter, but she's ready to move on to the next chapter of her life. She says she'll keep writing because she "literally can't stop," but she doesn't feel the need to top the success of the series.
"It was amazing. It was also insane at times," she says. "And there are parts of that insanity I'll be glad to leave behind. ... I love the people who read the books. I dedicated the last book to the people dearest to my heart, and the second part of that dedication was to the reader who stuck with Harry all the way through."