The gray morning sky clouds hovered over Nantucket. Howard Benson, a local fishmonger, drove down the street to his family’s shop, Howard and Son. Jeremy was already waiting for him. He and his father caught local fish for the store with help from Sawyer, a family friend who owned a boat. On Tuesdays, it was ...

An hour later, all five people were at the police station, talking over one another. “He is a thief!” the thin man exclaimed. “I swear on my life, I’m not!” Sawyer yelled. “Sawyer’s an honest guy; he’d never steal!” Jeremy said. “The evidence says otherwise,” the tall person said. “A gemstone falling out of a ...