The richie rich

Among the people who most fascinate me are those who have so much money that they don't have to work for a living. The reason I am fascinated is that it so often happens that instead of being lazy dullards living sybaritic, inconsequential lives, they turn out to be among the most creative people, contributing things of incalculable value to civilisation. The Roman philosopher emperor Marcus Aurelius was one such. So was Tolstoy (until he gave it all away), and Tagore, and Lord Kelvin the chemist, and Ludwig Wittgenstein (he too chose poverty). I could name dozens more. And so many of them keep working either because they are workaholics, or because they are addicted to the fame and money, or because they have found only work keeps them sane - look at Steve Jobs, and Sachin Tendulkar.

So what has Ms. J.K. Rowling been doing these three years since the last Harry Potter book was released? Can somebody find out and tell me?