Sarah obeyed, getting ready to move. And good thing too, because after a brief flash of light, the bug started to sink right down into the rock that had been holding it. She moved with a jerk, catching it by one leg and tugging it out onto the loamy earth. A few seconds later and the cement went solid again, still showing the deep grooves from her recent tug. The bits clinging to the changeling’s leg were still rock-hard, but that probably didn’t matter. Compared to what had just happened.