“That’s the usual process. However, in this case, it didn’t work. A Nix’s power has one significant limitation—she cannot compel a person to kill. The will and the intent must still be there. Conscious will and conscious intent. This witch was conflicted over her wish. Yet Nixen thrive on chaos, and they don’t appreciate being summoned without that end reward, so the Nix made a suggestion. She told the witch where to find a spell that would allow the Nix to take over the witch’s body, temporarily, and commit the act herself. The witch agreed, and the Nix—”

The girl leapt in, bubbling with the enthusiasm of a child who simply must tell the rest of the story. “—takes her over, and kills the woman’s father. And then she’s supposed to give the body back. Only she doesn’t. She uses the body to cause all kinds of trouble.”

The middle sister cut in. “And many people died…including the Nix herself, eventually. Trapped in a corporeal body, she died the death of a corporeal being. Having been in a witch’s form, she was brought here, to the supernatural realms. Although we aren’t equipped to handle a demi-demon, we managed to trap her in a hell dimension. For a while.”

“She escaped.”

“And that is a serious problem because this Nix isn’t flitting about the living world as a spirit. Having moved into a human body once, she is now able to do it at will.”

“So that’s the connection. It’s not the same woman. It’s the same Nix in different women. She takes them over—”

“Not exactly. Being a dead spirit, she can no longer fully take over a living body. Instead, she must cohabit, giving them resolve to carry out their desires.”

“So she doesn’t jump into innocent women and turn them into rampaging killers. Are the hosts always women?”

The Fate nodded. “Having first leapt into a host of that gender, she is now restricted to it.”

I paused. “If you ladies know so much about how she operates, I’m guessing she’s been out there for a while.”

“A little over a hundred years.”

“Uh-huh. I suppose that means I’m not the first person you’ve sent after her.”

“There have been three who’ve gone before you. We took three different approaches with varying degrees of success. All three…ended badly.”

“What did she do to them?”

The child Fate appeared, laughing. “Her first question, and it’s the one none of the others even thought to ask. When we told them that the others had failed, they only asked how the Nix got away. That’s what they figured she’d do—give them the slip and run. But you know better.”