The Night Ocean by Paul La Farge

H.P. Lovecraft was a complicated guy. For all his influence, he never achieved commercial success in his lifetime. (The author of the Wikipedia article about him suggests that one reason was he lacked the drive to promote himself, which sounds like the dilemma faced by every indie author out there.)
This new novel is, according to its blurb, inspired by the lives of Lovecraft and his inner circle. I'm so there.

I love the cover.