Nikki grunted when her head flew back. The skin split down the middle of her forehead. Horror filled me. They’d gone for the skull. Crimson bled into the whites of her eyes. A bloody tear leaked out. I couldn’t stand to see her subjected to this. The sooner we quit, the sooner it would end for her. The word left my lips before I could think of swallowing it back down. “Mercy.” Ty let out a shout when his back bent in half and his legs went slack. “Mercy!”