The publisher released teaser artwork featuring the Dancy Flammarion character, first introduced in Kiernan's 2001 novel Threshold, but specific details are yet to be confirmed.
"The discerning reader of my work can gather quite a lot from this Dark Horse teaser. And, though I dislike speaking of the tips of icebergs, well... such things are," the author wrote on her blog.
"I hope you're as excited by this as I've spent the last year being (as yes, I've been sitting on this secret, in one form or another since Oregon and my GoH stint at the H. P. Lovecraft Film Festival, when the mega-cool editor Rachel Edidin of DH asked for a meeting with me). So, make of all this what you will."
Kiernan is no stranger to comic books, having written the Bram Stoker Award-winning Sandman spinoff The Dreaming, as well as The Girl Who Would Be Death miniseries and The Sandman Presents: Bast.
Dark Horse Comics is expected to reveal full details of the collaboration soon.
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