Nathan brought a work lamp. In its glow, tucked beside the camshaft, sat a small bracket. It was the wrong color—a slightly different metal, machined by hand. It did not match a single other part in that pristine factory engine.
"This part doesn't exist," Theo said. "Not in any catalog, not in any manual. You can search the factory database for a hundred years and you will never find it, because the man who made it cut it himself on a lathe in a back room forty years ago."
"And how convenient," Boyd said, "that only you can see it."
Theo turned the bracket gently toward the light. On its underside, scratched so small you had to lean in, were two letters: S.C.
"Samuel Carter," Theo said quietly. "He signed his work where no one would look, because no one ever let him sign it anywhere else."
Walter rose halfway off his stool to see, and when he sank back down, he pressed a hand over his mouth. One of Boyd's own technicians, a younger man, crouched beside the engine, studied the bracket, and then said the words Boyd did not want to hear: "He's right, sir. This isn't one of ours. I've never seen this part in my life."
"It holds the cam sensor at a custom angle," Theo went on. "That's how the engine knows where it is. Move it, fight it, reset it to factory, and the whole engine loses its place. My father built the car to live around this one little piece. Everything else bends to it."
Walter's voice came soft and far away. "He told me once that a great engine needs one true north. I never understood what he meant." The old man looked at the bracket. "I'm looking at it now."
The garage had gone very warm and very quiet. The story had stopped being about a broken Ferrari; it had become about a man the world erased and the son who was writing his name back into it, one bolt at a time.
That was the second reveal: the engine had a maker, and the maker had a name. But a signature does not start a car.
Eleven minutes remained, and Theo still had to find the thing that had actually killed it. This was the part even he was not certain of, and the crowd could see him slow down, careful now, listening harder.