Here are some links to recent interviews:

What do you think influenced your decision to make this take on the ballad of Tam Lin so subversive, so dark?

Some of it came out of the original ballad - a couple of places that I had wanted to make work in my version of it but couldn’t. For example, Faerie having to pay a tithe to Hell every seven years, or the line where the Faerie Queen tells Thomas that if she’d known he was going to leave her, she would have taken out his heart of flesh, and replaced it with a heart of stone. I mean! It’s great.

Through the Looking Glass

SM: Much of your work—your short fiction in addition to the novel—centers women who are in some way monstrouseither figuratively or literallyor who fall in love with monsters. Why girl monsters? What is the pull there for you?

KH: Because being monstrous is a way for women to have power. I’m really interested in telling women’s stories, and I’m really interested in the ways women have to navigate a world that is all too often murderously aggressive towards them. So I’m interested in the women who take up space, who want too much, who make bad decisions and have messy lives, and the way the metaphors of fantasy allow me to write about them.

Myth and Magic