I was sad to see some of them go. Like a magic lantern that would project images on walls and people would travel the countryside with these magic lanterns and tell stories. And there was this cabinet that you would walk up to and it had a little peephole and inside the whole thing was covered in thousands of little mirrors.

As a publisher what you are trying to build is a long life for a book, to help it find its readers in many different ways, whether or not it made this list or got that review, etc. I'm sure some of that thinking has been useful to me as a writer as well.

I was obsessed with the scientific instruments people were building and all the weird experiments they were doing. I did actually wind up working in some of that, but there were whole sections I'd written about these instruments that ultimately had to be abandoned when I realized that the book really was about Margaret Cavendish. I couldn't justify using all of them.

So it was this multi-perspective, multi-character book, and it went through all of these different manifestations. I'm not sure there was a single moment where I thought to myself, Oh, I need to write about Margaret Cavendish. She just kept taking over the book I thought I was writing.

It's interesting, editing can be so immersive for me that I've noticed that the authors I edit have a pretty profound effect on how I hear language for a while.

Back then, when I had that original idea to write about the seventeenth century, the whole thing was set in 1666. I was thinking of Margaret near the end of her life, and that was the voice I heard for her.

I would be researching seventeenth-century garden design or I would be doing something with Pepys, but I just kept using all of it to write about Margaret Cavendish. It took me a long time to realize that I just wanted to write a book about her. Years.