Subterranean Press has revealed the cover to Elizabeth Bear's forthcoming novella ad eternum, which is likely to be the last of the Abby Irene novellas (though, giving the era for this one, we're unlikely to actually see Abby Irene - it's just how I think about the story series).
Love the cover, can't wait to read it. Though, I should really read The White City first.
The cover art is by Patrick Arrasmith. He's damn good.