I've always been a horror movie fan, since I was a kid. And I was also a really scared kid. I was easily scared of the dark. One of the ways I would try and get away from my fear of the dark was to pretend like the monsters were my friends.

I usually have more than one thing I'm working on at once -- I've been working on three different novels. When I get stuck on one, I hop back and forth. It's sort of freeing: I can say I'm abandoning this thing that I hate forever and I'm moving on to something that's good. I'll find that I'll go back to [the other project] in a day or a week and like it again. But that moment of wanting to trash something -- that Virginia Woolf moment when you have to be stopped from filling your pocket with stones -- comes pretty regularly for me. Switching is probably a good thing.

A conclusion is simply the place where you got tired of thinking.

I love to write when I feel like everybody else is asleep and when I feel like the world is kind of empty in some ways. I find, oddly enough, that I write about loneliness and isolation a lot.

I've been reading Peter Straub since I was a teenager, and his work is hardwired into my brain. A Dark Matter contains echoes of all that has been great about Straub's previous work and builds upon it. This Rashomon-like tale is as spooky and frightening as anything he has written, but it's also an intense and moving celebration of love. Out of the darkness comes, ultimately, a surprising and haunting sense of joy.

Writing short stories was kind of like I was cheating the whole time, in some way. I went back and forth between writing the novels and sort of sneaking out to work on stories occasionally. These stories were written over the last 10 years or so, as I was taking breaks from the novels I've written.

I'd read an enormous amount but had spent so much time in my own head that I didn't have extensive social skills. Suddenly I was in this world where I was surrounded by these incredibly polished and wealthy kids who had gone to prep schools, and I felt daunted by them. I don't think people were aware of how full of anxiety I was... For a long time I felt like I was living in a place where I shouldn't have been.