Outside, a gust of air caused a few leaves to break away from the blooming trees along the sidewalk. Across the street stood the white picket fence of Marjorie and Howard Wells. A short path of stones wove through the green grass, leading to the front door. “I hope you have time to stay for a while so I can offer you some refreshments.” Marjorie bent down to retrieve the key to the house, which she and her husband, Howard...