A s first world problems went, it was hard to top this one: being limited to relatively short-hop flights because of the unusual fuel required by the brand-new, state-of-the-art private jet that had been given to you as a personal gift. And yet by the time the airstrip at the Flying S Ranch finally rolled into view over the jagged horizon of West Texas, Saskia did feel she had some legitimate grounds for complaint. She and her new best friend Ervin, an ex–U.S. Air Force pilot from Baldwin Hills, California, had flown from the Line back to Vadan, where a hydrogen tanker still awaited them, and thence to Schiphol for an overnight stop and a quick check-in with the new Queen of the Netherlands. Fenna and Jules had hitched a ride from Vadan to Schiphol and then talked their way aboard for the remainder of the journey, cramming into the two passenger seats in the back of the jet’s tiny cabin as they tacked back and forth across the great circle route. From Schiphol they had flown to Aberdeen, then Reykjavik, then someplace called Nuuk in Greenland, where they’d been stuck for a day awaiting hydrogen. Then Gander, Newfoundland. Then Ottawa, Chicago, Denver, and finally the Flying S Ranch. They were low on fuel by the time they landed, but they’d solve that problem later. Or to be precise, Jules would. Managing hydrogen deliveries over a sketchy voice connection had turned out to be this young man’s unheralded superpower. There was, Saskia supposed, a kind of logic to it: divers had to know all about compressed and liquefied gases or else they would die. Hydrogen was only a small stretch once you knew everything about compressed air, oxygen, helium, and other staples of the diver’s trade. But a professional background in that area was only part of his qualifications. More valuable, as far as she could determine from overhearing his half of conversations with ground personnel, was his manner of talking. The reputation of America and Americans might be in tatters in elite cultural and diplomatic circles, but on the nuts-and-bolts level of the petroleum and mining industries, they still seemed to get a lot done in the world. The easygoing southern drawl, stiffened with traces of calm cool military discipline and implied know-how ("Yes, sir!" "No, ma’am." "Copy that!") seemed to open doors, or at least prevent random strangers worldwide from immediately slamming down the phone when Jules cold-called them out of nowhere with his outlandish requests.