When We Have Come to This Place: The Aliens Series as Cosmic Horror | Tor.com:

All the same, I’m drawn to certain types of horror in both writing and reading. With my novels Beneath the Rising and its sequel A Broken Darkness (as well as a couple dozen short stories), I told everyone I was simply writing fantasy with monsters and gods; ‘dark fantasy,’ probably. “Nope,” people told me again and again. “These are horror.” As I began to read more about it, I realized that swathes of my writing might not only be horror, but fall into a specific sub-genre of horror: cosmic horror.