Chase was less surprised to learn that she also had supplemental neural-trigger circuits that could be used to command a music system such as a keyboard or guitar. That made sense. The fact that Cara's left eye was artificial, but had no enhancements that made it more than normal, did not. Nor did the fact that Bough's cursory examination indicated that the long bone of her left forearm had been replaced. Bough suggested that perhaps she'd been in an accident. Chase was simply surprised. Cara had never said anything about it.