At Night "Mommy, come rub me." Henry has trouble winding down at bedtime. He wants me to come to him, to get in his bed with him, to rub his back. I oblige. I'm happy to; it's rare that he'll stay this still for me, to let me be this close to him. "Tell me the story about the two girls again." This is the story that my grandmother used to tell me, about the sisters, Lucy and Laney, and their dog Snoonie. And how they went to visit grandma in a snowstorm. And how they dug snow tunnels in the front yard until they were frozen. And how they all went inside and grandma warmed them by the fire, wrapped them in quilts, and made them hot chocolate. Years later, when my father died, I inherited his Bar Mitzvah photo album. My grandmother went through it with me, pointing out the relatives. There, seated at a round table, was Lucy. A young woman in 1956 with tanned arms, a floral dress. I hadn...