“Shall we?” said Mr. Mallory, standing beside her, and for a moment she thought he was inviting her into the biplane that sat beside them, inviting her to fly. She opened her mouth to exclaim Yes! but it turned out he just meant the hangar and the spark plug. He walked around the nose of the airplane, shifting Sandy from one shoulder to the other, and Irene, still dazed, stroked the wing a last time and followed him.

The doors to the hangar were the kind that rolled sideways, like pocket doors, except these were made of plain lumber and stood wide open to the California sunshine. Inside, Irene glimpsed two small, battered airplanes. Mr. Mallory maneuvered Sandy carefully from his shirt and back into the crook of his elbow. He nodded to the machine on the right. “Training planes. Picked them up cheap from the army. That one’s a Curtiss Jenny. The other’s a Canuck.”

“Which one do you recommend?”

“Neither.”

Irene stepped forward into the hangar. The grass turned to beaten earth. The air smelled of dust and grease and wood, a garage smell, except for something else, an unfamiliar chemical note. Aside from the two of them, and the airplanes and the tools, the hangar was empty. Irene wandered between the two machines. She touched the smooth wooden curve of a propeller blade, the taut canvas skin of a fuselage, a metal strut.

“I don’t see any difference between them,” she said.

“The Canuck’s the same plane, Canadian model. It’s lighter and it’s got . . . it’s got . . .”

Irene turned. Mr. Mallory stood by a wide wooden workbench that ran the entire length of the building. The rear of the Curtiss Jenny stood between them, cutting him off at the waist, so she couldn’t quite see what he was doing. Rummaging or something. Irene ducked under the airplane to join him at the bench. He had pulled out a crate from the shelf and Sandy stood against it, paws on the edge, to peer inside.

“It’s got what?” she said.

“Hmm?”

“The Canuck.”

“Oh. It’s just a flimsier airplane, that’s all. But it’s good enough for instruction. Here you are.” Mr. Mallory turned and held out his hand, which contained a pair of spark plugs.

“Oh! Thank you. I’d almost forgotten.”

Irene took the spark plugs. He was smiling at her, grinning really, and with his other hand he scooped up Sandy, who was taking some interest in the boxes of screws lined up where the bench met the wall.

“Say. If you’re interested. There’s an air show today, starts at noon.”

“An air show?”

“You know. Pilots take turns going up, showing off our airplanes, that kind of thing. Then we take up members of the public for five dollars a spin.”

“Will you be flying?”