UNCOMMON MIRACLES is one of those books you slow down in the middle of, because you can almost >taste< the odd, are compelled to roll it around in your mouth. "Speculative" is definitely the word, because you spend a long time afterwards thinking on the strange devices (ghosts and photos, creating portals through trash), but also the kinds of loneliness and desperation that can co-exist with love. There's beautiful language here, and striking images, even as things go sideways or into dark corners. And they do tend to stray to dark corners.
All of the stories are about grief and longing, about the ways people try to pull together or hold on to the tattered remnants of families (siblings, friends, parents and children) against the forces that keep shearing them apart. The strange what-ifs are rarely even what throws them into crisis; instead, they provide kind of a shorthand metaphor to talk about how it feels. You know, like that feeling when the baby won't stop crying from under the backyard. That sort of thing.
A couple of my favorites also play with form, like "The Thirteen Tuesdays of Saint Anthony" which is a grant application, or "Mourning Food: Recipes Included" because of the details that seamlessly brings impossible processes into the mundane.
Definitely for fans of AT THE MOUTH OF THE RIVER OF BEES by Kij Johnson, or JAGANNATH by Karin Tidbeck, or NORTH AMERICAN LAKE MONSTERS by Nathan Ballingrud.