'Ninth House' is my first book for adults.

If Connecticut is haunted then New Haven is the weirdest of the towns that is haunted.

I had wanted to be a writer for a very long time, and I had started a lot of books and failed to finish them. I had this terrible pattern of beginning manuscripts and then just losing steam, and I had begun to believe that I just didn't have it in me.

I mean, I am an easy crier.

Fantasy is expensive. It's an expensive endeavor. I have to admit, I didn't write with adaptation in mind. So the books simply become more outlandish as they go on, and they're full of a lot of locations and elaborate set pieces.

I don't believe that a page-by-page adaptation is necessary or interesting.

At least when I was a kid and a reader, I loved the feeling of wondering whether or not something was real, being able to look up connections.

When I created the Grisha, it was important that they be powerful but that they kind of represent the Jewish brain trust that developed before World War II and after World War II in the U.S.

Power in superhero stories and in magic, when people use it, it drains them. It makes them more tired or it drains them. I wanted power to feed the people that used it. I wanted it to make the people who used it stronger, more powerful, and beautiful. That was one of the tents of being a Grisha.

It was important to me that my heroes not be all good and my villains not be all bad.