CHAPTER 16The model train’s whistle blew three times as Mara pressed a button on top of the black box next to the circular tracks set up on the wood floor of the gadget shop. She sat on the floor with her legs crossed, showing Mr. Wannamaker how the controls on the new transformer worked. The train set was one he had gotten as a child from his grandfather, and he wanted to pass it on to his son now, but it would not operate when he assembled it. Mara quickly saw the old transformer had burned out.
However, shortly after she assessed the problem, the train worked again of its own accord. She still hadn’t gotten a handle on unintentionally repairing things with her touch, but, at least in this case, her practical experience would still be of use. Even though the old transformer now worked,
