He knew before the test. He'd done this once, and the body doesn't get more subtle the second time round.
He was sick at six in the morning on the bathroom floor, and Sakura slept through it, and he sat with his back against the wall afterwards and did the arithmetic he already knew the answer to.
He waited three days, which he could not have explained to anyone. Then he went down early to catch Ren before the crowd, because there was no good place for it and at least there his hands would have something to do.
Ren got there first. Bought nothing, which in four years had never once happened.
"I've got something to tell you," Brooks said.
"Me too." Ren rubbed the back of his neck. "Can I go first? I'll lose my nerve otherwise."
"I'm going away. Kona. There's a station out there." He said it fast, the way people say things they've been rehearsing badly. "Deep water survey. They lost their lead and they want me on it."
Ren almost smiled. "I'm a marine biologist. You never asked."
And Brooks stood there with a tray in his hands and had the strangest sensation, like a floor tilting. A waiting room, a year back. Sakura on his knee with a temperature, a magazine somebody had left on the seat. Three pages on hydrothermal vents and the animals that live at them, and a name he'd read straight past — the same name, the same spelling. He'd found it interesting. He'd put the magazine down and forgotten it, because there was no world in which the man who bought his cardamom buns three times a week was the person who'd written that.
"Two years. Could be three."
"I found out four days ago," Ren said. "After. I want you to know that. When we — I didn't know."
Four days. Brooks turned that over. That put it after the birthday, after the kitchen, after all of it, and there was no version where Ren had sat on this.
He'd had the words lined up for three days. He could feel exactly where they sat.
"Nothing," he said. "It'll keep."
Ren waited. Brooks put the ones he liked into a paper bag and handed them over and didn't take his money, and after a while Ren took the hint and went.
He got through the whole morning. Sold out by one.
Then he sat down behind the stall on an upturned crate, out of sight of the street, and thought: four years you came here, and I never asked you a single real question.