This came from a GRRM collection ([b:Dangerous Women 3|21531493|Dangerous Women 3|George R.R. Martin|https://d.gr-assets.com/books/1407773333s/21531493.jpg|43000942]) and it feels like it (I'm currently (still!) reading [b:Rogues|20168816|Rogues|George R.R. Martin|https://d.gr-assets.com/books/1404616147s/20168816.jpg|27565413], Shadows has a similar vibe to the stories included in Rogues). Not enough of a story to hinge a whole novella on, but certainly enough to spend 50 pages one afternoon.