The Devote by Jeanette Clarke

Two brothers. Two monsters. One claims he made her. One swears he saved her.
Both might be lying.

The woman who was Bunny has become something else—something even Gabriel didn’t anticipate when he carved obedience into her bones. Something Nathan never planned for when he taught her to turn conditioning into ammunition.

She is the perfect weapon, trained by one brother and sharpened by the other. Now neither can control what they’ve created.

In the bleeding house, where trauma drips from walls like memory made manifest, she’ll finally learn the truth: which brother runs the Institute, which one truly loved her, and which one has been playing a longer, darker game than anyone imagined.
But some truths cut both ways. Because while she hunts for answers about Nathan and Gabriel’s twisted partnership, a more terrifying question emerges: What happens when the monster trained to end all monsters realizes she’s become worse than anything she was meant to destroy?

As the body count rises and the lines between justice and madness dissolve, she must decide—is she the rabbit, the hunter, or something new entirely? Something that feeds on the men who feed on girls like her?

And when she’s done bleeding the truth from both brothers, will there be anything human left to save?
The brutal conclusion to the Institute series asks: When you’re programmed to be a weapon, is choosing your target the same as being free?
The greatest monsters are the ones who convince you they’re your salvation.