Résumé: Blythe knew there was no time like the present more dangerous to be an airline stewardess, but the skies might be much more dangerous than anyone imagines. She's just learned of the Etesian Front - vigilantes dedicated to take the skies back from terrorism - and they're after Zayn, a man she's just met. Whether he's an average frequent flier or a terrorist, finding out will lead Blythe to discover the weird science of hyperaxis and the mysterious artifact that will change the way we see technology forever.