The brass key was stamped 47. The librarian, a woman named Pauline with silver glasses and a kind round face, took one look at it in my hand and put a palm flat on the counter. “Mr. Hollis,” she said. “Please come with me.” She led me through a door marked Staff, down a short hall, to a row of gray metal lockers used by the Friends of the Library for the book sale. Number 47 was at the end. The key turned smoothly. My hands were cold as stones.
Inside there was a cardboard box, a thick manila folder, and a small gray hairbrush. I picked up the folder. On the first page was the report of a private laboratory in Denver, dated November, addressed to Bonnie. Hair analysis, three samples. Arsenic, forty one parts per million. I knew what that meant. I read it twice. Then I turned to the second page, a second lab report, and I read the result for the water. It was from our own kitchen tap.
Pauline said Bonnie had come in every Friday for months. She was so careful. She looked up poisoning, and she looked up wells, and she looked up the old mines on the Grand Mesa where the ground water runs. She suspected two things, Pauline said, and she was terrified of one of them. She suspected the water, and she suspected our son. “She was afraid to be right,” said Pauline. “She wanted to be sure it was the well before she said a word to anyone. She did not want to accuse him if it was wrong.”
I sat down on a stack of boxes. I thought of the house we had lived in for thirty three years, on the north edge of town, with its old deep well that the father of Bonnie had dug in 1958. We never connected to city water because the well tasted sweet. I had tested that well once, in 1990, for bacteria. I never tested it for metals. I, a chemist, who taught the periodic table for thirty one years, had been pouring arsenic into the coffee of my wife every morning for decades without knowing.
The cruelest poison is not always the one put in a cup by a hand, but the one a good man never thought to look for in the water he loved.
The letter was folded inside the folder. In her slanted writing, Bonnie told me everything. How the tingling in her feet began last fall. How the doctors said stress. How she read about hair loss in a magazine and realized it was falling out the same way the hair of our son was. “Ray, our boy is sick too, but he does not know,” she wrote. “He drinks from the same well, and he takes four cups a day. If I am right, it is worse for him. I will not leave this world until I am sure. I am so sorry I did not tell you sooner. I did not want you to think I suspected him.”
She had written until the end. She finished it in the hospital in April, with a pencil. If I am gone when you read this, then I have been right, and I want you to do two things. Test the well. And take our son to a doctor. Do not let him blame himself. I sat there in a basement room in a public library with my hand over my eyes, and I felt the hand of my wife on my shoulder, as if she had been there the whole time, and I wept.
I drove straight home. My son was in the kitchen. He was thirty seven, thin, with his hair gone to patches, and he was making coffee from the tap, the way he did every morning. I took the cup out of his hand and poured it down the sink. He stared at me. “Dad, what are you doing?” I said, “Sit down, son. I have to tell you something, and I need you to hear every word before you say anything.”
The county health department tested the well on Monday. The reading was forty times the limit. They told us there was a natural vein of arsenic in the rock under the property, made worse by the old mine runoff, and that the well had probably been bad for years, creeping upward. My son was tested the same week. His levels were high, but not fatal, caught in time. He began treatment in November, and his tingling hands slowly began to ease. When he found out what his mother had suspected, he did not speak for a long while. Then he said, “She thought I did it. And she loved me anyway.”
I told him no. I said she did not think it. She feared it, because a fear in a mother runs ahead of her reason, and because she could not bear the idea of being right. And then she did the hardest thing, which was to look, quietly, alone, for the truth. “Your mother was the bravest person I ever knew,” I said. “She protected you from her own suspicion until she could prove it false.” He cried like a boy, in the kitchen, with his head on my shoulder.
We capped the well that winter and connected to city water. I gave the lab reports and the records to the university for the study of the Mesa. The library put a small plaque on the shelf of the Friends, with the name of Bonnie, and the title of the book she had waited for. I picked it up myself, finally, on a gray afternoon in December. Arsenic and Heavy Metals. On the inside cover, in pencil, she had written one line. For Ray, when he is ready.
