"I could get into bone puppeteering," Nina says. "That's a great idea. Grisha ...can be three different types, Corporalki, Etherealki and Materialki. The human body, the natural elements, and materials. I'm a Corporalki but I'm one of a kind. I used to be a Heartrender. I could, um, control the flow of blood through a human body." There's obviously more to it, the used to be, but Nina seems slightly reticent to talk about that part.