Hidden Girl and Other Stories

From the title story''s fantastical inter-dimensional assassins to the steampunk dystopia of "Grey Rabbit, Crimson Mare, Coal Leopard" burrowing through the ruins of a civilisation destroyed by a plague, from Black Mirror-esque tales of blockchain cryptography ("Byzantine Empathy") and Internet trolling ("Thoughts and Prayers") to a three-story hard-SF arc about artificial intelligence and the sin...