Percy instantly sobered. As dangerous as the first hop could be, it was hopping between charted currents that took real skill. He took out his pocket watch and snapped it open. “Four hours, twenty-six minutes.”

Rue smiled. “Excellent. More than enough time for tea. Carry on, navigator.”

“Captain,” said Percy slightly sarcastically, but it was good enough for Rue.

The boiler room was a busy hum of activity: sooties scampered to and fro guiding the coal feeders, firemen manned the kettles, and greasers oversaw the smooth coordination of it all. It wasn’t a big crew but they managed to look substantial by being everywhere at once. Quesnel stood to one side, watching in confident superiority. Aggie Phinkerlington slouched next to him, occasionally barking out an order. The two had worked out a system that involved Quesnel calmly and softly pointing out some flaw and Aggie yelling at someone about it.

“How’s she floating, chief engineer?” Rue asked.

Quesnel acted as if he hadn’t noticed her until she spoke. Although there was no doubt he had been aware of her presence the moment she entered the room. “Perfectly, captain. As if I should design anything less than sublimely efficient.”

Rue decided to play along and not prod him in the ribs with a tong. “Compliments from ship’s navigator – the Custard hopped the aether beautifully. We are right on course.”

“Compliments from old Percy? Stoats might float.”

“Mr Lefoux.” Rue pretended shock. “Language.”

Aggie said, “Our captain’s a real lady, boffin. Respect her as such.” The look on her face suggested this was meant to be an insult.

Rue only bobbed a regal curtsey, acting like Primrose at her most haughty. “Thank you kindly for the support, Greaser Phinkerlington.” She continued to Quesnel, “However, I was wondering about the noise.”

“What noise?” Quesnel was all innocence.

“You know, the noise the propeller makes when she cranks up, out of the smoke-stack.”

“No, I don’t know. Can you make it for me?”

“No, I most certainly cannot! It was slightly, well…” Rue lowered her voice. “Flatulent. Percy suggested it was the result of a design flaw.”

“Oh, he did, did he?” Rue couldn’t tell if Quesnel was pretending to be offended or genuinely upset.

“Is it going to make that sound every time we crank up?”

Aggie snorted out a laugh. “Troubles your delicate sensibilities, does it, Lady Captain?”

Rue openly acknowledged this fact – she didn’t think it a character flaw. “Well, yes, it does rather. Not to mention Miss Tunstell, whose sensibilities are far more delicate than mine. And there are appearances to consider.”

“Pox to appearances,” said Aggie rather aptly.

“Now, now, Greaser Phinkerlington,” remonstrated Rue. “Some of us have to think of every possible angle. What if we need to be stealthy or sneak away from a situation?”

“In a ship painted like a ladybird?”

Rue was beginning to suspect Aggie of disliking her decorative choices.