"I know," he said. "I wanted you unnecessary. Then I would have been the one who knew how the pills were lined up, and that would have been a kind of pay. It isn't pay. It's just Tuesdays. You can have some of the Tuesdays. Not as a favor. As arithmetic. She asked for arithmetic."
"Helen."
"Helen," he said. "And the tree. Luis did a decent job. Don't let it go to your head."
"Half the receipt is already yours."
"I know how to subtract."
Arthur's eyes were closed. He was not asleep. His mouth had the set it got when he was letting other people finish their own work.
When Denise called them back, the card was new and plain. The instruction was a page of ordinary sentences. Arthur read both, moving his lips a little, not caring that they saw. He asked Denise what happened if one of them died. She told him. He asked what happened if he died. She told him that too, and he nodded at the unromantic truth of payable on death and joint ownership, words that had frightened him last week and were, in this light, only tools. He picked up the pen himself. His hand shook. The signature sat lower than March and steadier than Thursday, a third handwriting, the handwriting of a man who had been allowed to be afraid out loud and was now doing a smaller, braver thing. Ruth signed where Denise pointed. Caleb signed. Their names looked strange beside each other, a proximity the computer would understand and the kitchen would have to practice.
Denise dated the page. She signed as witness. She made copies. She put the March card and the Thursday card into a sleeve marked superseded, not destroyed. "We don't throw the history out," she said. "We just stop letting it drive."