Matt Cruse is a cabin boy on the Aurora, a huge airship that sails hundreds of feet above the ocean. One night he meets a dying balloonist who speaks of beautiful creatures drifting through the skies. It is only after Matt meets the balloonist's granddaughter that he realizes that the man's ravings may, in fact, have been true, and that the creatures are completely real and utterly mysterious.

The Industrial Revolution has escalated into all-out warfare. Sixteen years have passed since the Heterodyne Boys, benevolent adventurers and inventors, disappeared under mysterious circumstances. Today, Europe is ruled by the Sparks, dynasties of mad scientists ruling over - and terrorizing - the hapless population with their bizarre inventions and unchecked power, while the downtrodden dream of the Heterodynes’ return. At Transylvania Polygnostic University, a pretty, young student named Agatha Clay seems to have nothing but bad luck.

In a Victorian era ruled by a council of ruthless steam barons, mechanical power is the real monarch and sorcery the demon enemy of the Empire. Nevertheless, the most coveted weapon is magic that can run machines - something Evelina has secretly mastered. But rather than making her fortune, her special talents could mean death or an eternity as a guest of Her Majesty's secret laboratories. What's a polite young lady to do but mind her manners and pray she's never found out?

It’s wintertime at Greenglass House. The creaky smuggler’s inn is always quiet during this season, and 12-year-old Milo, the innkeepers’ adopted son, plans to spend his holidays relaxing. But on the first icy night of vacation, out of nowhere, the guest bell rings. Then rings again. And again....

He's not just any thief. He’s the greatest thief of the age - and he’s also a wizard. And with the help of his partners - a swordsman with the most powerful magic sword in the world but no magical ability of his own, and a demonseed who can step through shadows and punch through walls - he’s going to put his plan into effect. The first step is to increase the size of the bounty on his head, so he’ll need to steal some big things. But he’ll start with somethingsmall. Something like a king....

In a world where humanity lives in the sky to escape a deadly mist below, Cass’s only goal is survival. That is, until she finds a job on the airship Daedalus as a diver. Now she explores ruined cities, looking for treasure and people’s lost heirlooms until a young man hires her to find the impossible: a way to eradicate the Mist.

Taya soars over Ondinium on metal wings. She is an icarus - a courier privileged to travel freely across the city’s sectors and mingle indiscriminately among its castes. But even she can’t outfly the web of terrorism, loyalty, murder, and intrigue that snares her after a daring mid-air rescue.

Evil is most assuredly afoot - and Britain’s fate rests in the hands of an alluring renegade... and a librarian. These are dark days indeed in Victoria’s England. Londoners are vanishing, then reappearing, washing up as corpses on the banks of the Thames, drained of blood and bone. Yet the Ministry of Peculiar Occurrences - the Crown’s clandestine organization whose bailiwick is the strange and unsettling - will not allow its agents to investigate. Fearless and exceedingly lovely Eliza D. Braun, however, with her disturbing fondness for dynamite, refuses to let the matter rest...

The Impossible Postal Express is no ordinary train. It's a troll-operated delivery service that runs everywhere from ocean-bottom shipwrecks to Trollville and to space. But when this impossible train comes roaring through Suzy's living room, her world turns upside down. After sneaking on board, Suzy suddenly finds herself deputy post master aboard the train and faced with her first delivery - to the evil Lady Crepuscula. Then, the package itself begs Suzy not to deliver him.

As assistant to Mangkon’s most celebrated mapmaker, twelve-year-old Sai plays the part of a well-bred young lady with a glittering future. In reality, her father is a conman—and in a kingdom where the status of one’s ancestors dictates their social position, the truth could ruin her. Sai seizes the chance to join an expedition to chart the southern seas, but she isn’t the only one aboard with secrets. When Sai learns that the ship might be heading for the fabled Sunderlands—a land of dragons, dangers, and riches beyond imagining—she must weigh the cost of her dreams.

1870. A time known as The Great Killing. The vampire clans arose and slaughtered humanity with unprecedented carnage in the northern parts of the world. Millions perished; millions were turned into herd animals. The great industrialized civilizations of the world were left in ruin. A remnant fled south to the safety of the ever present heat which was intolerable to vampires. There, blending with the local peoples, they rebuilt their societies founded on human ingenuity, steam and iron.

Welcome to New Vegas, a city once covered in bling, now blanketed in ice. Like much of the destroyed planet, the place knows only one temperature: freezing. But some things never change. The diamond in the ice desert is still a 24-hour hedonistic playground, and nothing keeps the crowds away from the casino floors, never mind the rumors about sinister sorcery in its shadows. At the heart of this city is Natasha Kestal, a young blackjack dealer looking for a way out. Like many, she's heard of a mythical land simply called "the Blue".

Five hundred years ago, a clan of rebels was banished to the bottom of the enchanted world of Aeronne; ever since, these Bottom Dwellers have sought revenge, and now they are waging all-out war on the rest of humanity. Their deadly 'contramagic' beams destroy buildings and attack naval airships, and their demonic drumming brings terrible storms and disrupts the magic of the people and dragons Above. The attack of their full contramagic power will create a magical Armageddon.

In 1943, when the United States learns that Germany is on the verge of a deadly innovation that could tip the balance of the war, the government turns to an unlikely source for help: the nation’s top science fiction writers. Installed at a covert military lab within the Philadelphia Naval Yard are the most brilliant of these young visionaries. The unruly band is led by Robert Heinlein, the dashing and complicated master of the genre. His “Kamikaze Group,” is tasked with transforming the wonders of science fiction into science fact....

The known world floats upon the Breath of God, a thick gas similar to Earth's oceans, with land masses accessible by airship. The largest of these land masses are ruled by the rival empires of Freya and Rosia. Magic is intrinsic to the functioning of these societies, and is even incorporated into their technological devices. But now a crucial scientific discovery has occurred that could destroy the balance of power - and change the empires forever.