“Oh, poor Josephine!” he cried in full Platov mode. “You are seeing all happening in front of eyes.”

“I have to ask you.”

“What?”

Before she could speak, she heard a scream. Abby was screaming. Then, miraculously, a cheer from every throat. She whirled toward the creek. Everyone was looking downstream. Baronet Eddison-Sydney-Martin was limping unsteadily along the bank, soaking wet, covered in mud and fumbling with a cigarette he could not light.

BELL TOLD ANDY MOSER that he was certain that he had seen Eddison-Sydney-Martin’s propeller fall off. “Is it common?”

“It happens,” said Andy.

“What would cause it?”

“Lots of things. A crack in the hub.”

“But he inspected the machine every time he flew. He walked around it and checked mounts and stays and everything. Just like all of us do. So did his mechanicians, just like you do for me.”

“Could have hit a rock bouncing on the field.”

“He would have noticed, felt it, heard it.”

“He’d notice if it shattered the propeller,” said Andy. “But if a rock hit right on the hub at the same moment he had his hands full just getting her into the air and his motor was straining loudly, maybe he didn’t. Couple of months ago I heard about a propeller getting unstable because it was stored standing up. Moisture sunk into the bottom blade.”

“His was brand-new and used nearly every day since he got it.”

“Yeah, but you get these cracks.”

“That’s why it was painted silver,” countered Bell, “so little cracks would show.” That was standard procedure on pushers. His own propeller was not because a silver propeller spinning in front of the driver would dazzle him.

“I know, Mr. Bell. And obviously it wasn’t around long enough to rot, either.” Moser looked up at the tall detective. “If you’re asking me was it sabotage, I’d say it sure as heck could have been.”

“How? If you wanted a fellow’s propeller to fly off, what would you do?”

“Anything I could to throw it out of kilter. When the propeller is off balance, it vibrates. Vibrations will break it or rattle the hub loose, or even shake the motor right off its mounts.”

“But you wouldn’t want it shaking that much because the fellow you’re trying kill would notice and stop his motor and volplane down as fast as he could.”

“You’re right about that,” Andy said gravely. “The saboteur would have to really know his business.”

But that, Isaac Bell had to admit, was true of every mechanician in the race, with the possible exceptions of Josephine’s disguised detectives. Another truth he could not ignore was that Preston Whiteway had gotten the wish he had so unabashedly hoped for back in San Francisco. He had had to wait long past Chicago and halfway across Kansas, but a “winnowing of the field” had indeed turned the race into a contest that pitted the best airmen against plucky tomboy Josephine.

Eddison-Sydney-Martin had probably been the best – and his winnowing by sabotage had hardly been natural. But steady Joe Mudd was proving himself to be no slouch, while the thoroughly unpleasant but undeniably courageous Steve Stevens was a fast flier who pushed ahead unintimidated by the vibrations endangering his machine.

Bell had no way of knowing who the saboteur would try to attack next. In fact, the only thing that the tall detective knew absolutely for sure was that his first job was still what it had always been: keep Harry Frost from killing Josephine.

BELL WONDERED WHETHER the machine-gun raid at Fort Riley could have been an elaborate feint by Harry Frost, a distraction to lull Josephine’s protectors into loosening the cordon they kept around her each night at the fairgrounds and rail yards. With that possibility in mind, Bell laid an ambush. He waited for dark – after sad good-byes with the Eddison-Sydney-Martins, whose support train steamed out of the tiny Morris County Fairgrounds rail yard back to Chicago – and climbed onto the roof of Josephine’s private car. For hours, he lay in wait, scanning the trains parked on the other side of Whiteway’s special and listening for the crunch of boots on gravel ballast.

It was a hot night. Windows, skylights, and roof hatches were open. Murmured conversations and occasional bursts of laughter mingled with a quiet sighing of locomotives bedded down with banked fires producing just enough steam to power lights and warm water.

Around midnight, he heard someone knock at Josephine’s rear vestibule. Whoever it was, he must have come through the train, as Bell had seen or heard no one on the ballast. Nonetheless, Bell drew his Browning and aimed it through an open roof hatch at the door. He heard Josephine call sleepily from her stateroom, “Who is it?”

“Preston.”

“Mr. Whiteway, it’s kind of late.”

“I must speak with you, Josephine.”

Josephine padded into the front parlor, wearing a simple dressing gown over cotton pajamas, and opened the door.

Whiteway was dressed in a suit with a silk necktie, and his hair was combed in grand golden waves. “I want you to know that I’ve put a lot of thought in what I am about to say to you,” he said, and began pacing about the narrow parlor. “Odd. I feel a little tongue-tied.”

Josephine curled up in an overstuffed chair, tucked her bare feet under her, and watched him warily. “I hope you are not changing your mind,” she said. “I’m doing much better. My times are improving. I’ve been catching up. And now that the poor baronet is out of the race, I have a very good chance.”

“Of course you have!”

“Joe Mudd isn’t as fast. And Steve Stevens can’t keep going much longer.”

“You’re going to win. I’m sure of it.”

Josephine grinned. “That’s a relief. You looked so nervous, I thought you were dropping me. . But what are you trying to say?”

Whiteway stood to his full height, thrust out his chest and belly, and blurted, “Marry me!”

“What?”

“I’ll make a wonderful husband, and you’ll be rich, and you can fly aeroplanes every day until we have children. . What do you say?”

After a long silence, Josephine said, “I don’t know what to say. I mean, it’s very nice of you to offer, but-”

“But what? What could be better?”

Josephine took a deep breath and climbed to her feet. Whiteway opened his arms to embrace her.

“THEN WHAT HAPPENED?” whispered Marion when Bell reported to her at breakfast in the Josephine Special’s lavish dining car. Her enormous coral-sea green eyes were wide and so beautiful that for a long moment Bell lost his train of thought.

“Did she say yes?” Marion prompted.

“No.”

“Good. Preston is too in love with himself to be a loving husband. If she’s as sweet a girl as I read in the newspapers, she deserves better.”

“You’ve seen more of her than the newspaper readers.”

“We’ve only said hello in passing. But I would have thought she would have answered ‘Maybe.’”

“Why?” Bell asked.

Marion thought on that. “She strikes me as someone who gets what she wants.”

“It was a sort-of maybe. She said she had to think about it.”

“I suspect she has no one to talk to. I’ll give her an ear. And an opinion, if she wants one.”

“I was hoping you would say that,” said Bell. “In fact, I was hoping you would put your mind to what Harry Frost meant when he said that she and Celere were up to something.”

Marion glanced out the window. A stiff wind was spinning miniature tornadoes of coal smoke, wheat chaff, and cinders around the trains. “No flying today. I will do it right now.”

“I WANT TO BE LIKE YOU WHEN I GROW UP,” Josephine grinned at Marion. They were alone in the front parlor of Josephine’s private car, curled up in facing armchairs. Coffee cups sat between them untouched.