The galaxy remembers Hadrian Marlowe as a hero: the man who burned every last alien Cielcin from the sky. They remember him as a monster: the devil who destroyed a sun, casually annihilating four billion human lives - even the emperor himself - against Imperial orders. But Hadrian was not a hero. He was not a monster. He was not even a soldier. Fleeing his father and a future as a torturer, Hadrian finds himself stranded on a strange, backwater world.

Welcome to the Five Isles, where war has come in the name of the invading army of Sor Sevier, a merciless host driven by the prophetic fervor of the Angel Prince, Aeros, toward the last unconquered kingdom of Gul Kana. Yet Gault, one of the elite Knights Archaic of Sor Sevier, is growing disillusioned by the crusade he is at the vanguard of just as it embarks on his Lord Aeros' greatest triumph. While the eldest son of the fallen king of Gul Kana now reigns in ever increasing paranoid isolationism, his two sisters seek their own paths.

The Catenan Republic—the Hierarchy—may rule the world now, but they do not know everything. I tell them my name is Vis Telimus. I tell them I was orphaned after a tragic accident three years ago, and that good fortune alone has led to my acceptance into their most prestigious school. I tell them that once I graduate, I will gladly join the rest of civilized society in allowing my strength, my drive, and my focus—what they call Will—to be leeched away and added to the power of those above me, as millions already do. As all must eventually do.

Darrow is a Red, a member of the lowest caste in the color-coded society of the future. Like his fellow Reds, he works all day, believing that he and his people are making the surface of Mars livable for future generations. Yet he spends his life willingly, knowing that his blood and sweat will one day result in a better world for his children. But Darrow and his kind have been betrayed. Soon he discovers that humanity reached the surface generations ago. Vast cities and sprawling parks spread across the planet.

The Tower of Babel is the greatest marvel in the world. Immense as a mountain, the ancient Tower holds unnumbered ringdoms, warring and peaceful, stacked one on the other like the layers of a cake. It is a world of geniuses and tyrants, of airships and steam engines, of unusual animals and mysterious machines. Soon after arriving for his honeymoon at the Tower, the mild-mannered headmaster of a small village school, Thomas Senlin, gets separated from his wife, Marya, in the overwhelming swarm of tourists, residents, and miscreants.

Wily, charming Kuni Garu, a bandit, and stern, fearless Mata Zyndu, the son of a deposed duke, seem like polar opposites. Yet in the uprising against the emperor, the two quickly become the best of friends after a series of adventures fighting against vast conscripted armies, silk-draped airships, and shapeshifting gods.

Lukan Gardova is a cardsharp, academy dropout, and—thanks to a duel that ended badly—the disgraced heir to an ancient noble house. His days consist of cheap wine, rigged card games, and wondering how he might win back the life he threw away. When Lukan discovers that his estranged father has been murdered in strange circumstances, he finds fresh purpose. Deprived of his chance to make amends for his mistakes, he vows to unravel the mystery behind his father's death. His search for answers leads him to Saphrona, fabled city of merchant princes, where anything can be bought if one has the coin.

Epheria is a land divided by war and mistrust. The High Lords of the South squabble and fight, only kept in check by the Dragonguard, traitors of a time long past, who serve the empire of the North. In the remote villages of Southern Epheria, still reeling from the tragic loss of his brother, Calen Bryer prepares for The Proving - a test of courage and skill that not all survive. But when three strangers arrive in the village of Milltown, with a secret they are willing to die for, Calen’s world is ripped from under him and he is thrust headfirst into a war.

On a mountainside at the edge of the Kaigenese Empire live the most powerful warriors in the world, superhumans capable of raising the sea and wielding blades of ice. For hundreds of years, the fighters of the Kusanagi Peninsula have held the Empire's enemies at bay, earning their frozen spit of land the name "The Sword of Kaigen". Born into Kusanagi's legendary Matsuda family, f14-year-old Mamoru has always known his purpose: To master his family's fighting techniques and defend his homeland.

Nine hundred thousand years ago, something annihilated the Amarantin civilization just as it was on the verge of discovering space flight. Now one scientist, Dan Sylveste, will stop at nothing to solve the Amarantin riddle before ancient history repeats itself. With no other resources at his disposal, Sylveste forges a dangerous alliance with the cyborg crew of the starship Nostalgia for Infinity. But as he closes in on the secret, a killer closes in on him because the Amarantin were destroyed for a reason.