Every Saturday, Walt opens his garage on Hollis Lane. He sets out two chairs, a kettle, and a sign in his own shaky handwriting: BRING ME WHAT'S BROKEN. He charges nothing. Since his wife Marguerite died, his hands just need somewhere to go. People bring dead radios and stopped clocks. This Saturday, the kettle is barely warm when the first knock comes.

A boy stands in the doorway, maybe nine, holding a toy robot with one arm hanging loose. "My mom said you fix things for free," he says. "Is that a trick?" Walt smiles. "No trick. Pull up a chair." The boy sits down and watches Walt's hands closely, like he's waiting to see a magic trick.