“I need you with me,” she said. “Don’t go away again.”
But I hadn’t gone away! I had been abducted!
I could feel the sleep pressing down on her.
“I need you with me,” she said. “I’m so afraid. I’m so afraid.”
It’s okay, I said. I’m here.
She rolled to the edge of the bed and looked down at me, her eyes glazed.
“Get me through tonight,” she said. “That’s all I need. Protect me. Don’t let it happen tonight. Enzo, please. You’re the only one who can help.”
I will, I said.
“You’re the only one. Don’t worry about that nurse; I sent her home.”
I looked over to the corner, and the crinkly old woman was gone.
“I don’t need her,” she said. “Only you can protect me. Please. Don’t let it happen tonight.”
I didn’t sleep at all that night. I stood guard, waiting for the demon to show his face. The demon was coming for Eve, but he would have to get past me first, and I was ready. I noted every sound, every creak, every change in air density, and by standing or shifting my weight, I silently made it clear to the demon that he would have to contend with me if he intended to take Eve.
(Garth Stein, The Art of Racing in the Rain)
I guess that guard is predicative for I and has no article because Enzo is the only guard. If he were one of many guards, the matrix would have been I stood a guard. (As in: Bill was head boy and Charlie was captain of Quidditch. Now Percy’s a prefect - Harry Potter book one, p99) Is this right, or is there other structure for the example?