With experimental curiosity, I perched my teeth on the doe’s shoulder, savoring how it felt to have prey in my jaws. I was taunting myself, I knew, but I couldn’t deny how pleasing it was to at least experience the sensation. When I bit down harder, the flesh gave, and I felt bone under my canines. I lost myself in it until I accidentally split the hide, and blood touched my gums.

Pain flared through my mouth. I reeled back, shaking my head and spitting. My unicorn ancestry wouldn’t ...