This was wonderful. Twisted and dark and with a ending I wasn't at all expecting, but wonderful. 
 It was so short, but I was so quickly and deeply invested in Nadya's wellbeing and trying to figure out who was responsible for everything that was happening. 
 It's a folktale set in the world of the Grisha trilogy, briefly mentioned by one of the Grisha trilogy characters, but you can easily read it as a little standalone story. I'd recommend it, in fact. ;)