Kell is one of the last Antari—magicians with a rare, coveted ability to travel between parallel Londons; Red, Grey, White, and, once upon a time, Black. Kell was raised in Arnes—Red London—and officially serves the Maresh Empire as an ambassador, traveling between the frequent bloody regime changes in White London and the court of George III in the dullest of Londons, the one without any magic left to see. Unofficially, Kell is a smuggler, servicing people willing to pay for even the smallest glimpses of a world they'll never see. It's a defiant hobby with dangerous consequences, which Kell is now seeing firsthand. After an exchange goes awry, Kell escapes to Grey London and runs into Delilah Bard, a cut-purse with lofty aspirations. She first robs him, then saves him from a deadly enemy, and finally forces Kell to spirit her to another world for a proper adventure. Now perilous magic is afoot, and treachery lurks at every turn. To save all of the worlds, they'll first need to stay alive.

In this new standalone, Hugo Award-winning author Nghi Vo introduces a beguiling fantasy city in the tradition of Calvino, Mieville, and Le Guin. A demon. An angel. A city that burns at the heart of the world. The demon Vitrine—immortal, powerful, and capricious—loves the dazzling city of Azril. She has mothered, married, and maddened the city and its people for generations, and built it into a place of joy and desire, revelry and riot. And then the angels come, and the city falls. Vitrine is left with nothing but memories and a book containing the names of those she has lost—and an angel, now bound by her mad, grief-stricken curse to haunt the city he burned. She mourns her dead and rages against the angel she longs to destroy. Made to be each other’s devastation, angel and demon are destined for eternal battle. Instead, they find themselves locked in a devouring fascination that will change them both forever. Together, they unearth the past of the lost city and begin to shape its future. But when war threatens Azril and everything they have built, Vitrine and her angel must decide whether they will let the city fall again. The City in Glass is both a brilliantly constructed history and an epic love story, of death and resurrection, memory and transformation, redemption and desire strong enough to burn a world to ashes and build it anew.

The bookshop must have an owner . . .'A DARK DREAM . . . BEWARE. THIS FAIRY TALE IS DEADLY' LAINI TAYLOR, on The City of Stardust In this extraordinary standalone from the #1 Sunday Times bestselling author of The City of Stardust, a disgraced bookseller is offered the chance to restore a magical bookshop to its former glory, and enters a dark underworld of unscrupulous collectors, deadly ink magic and shady societies. If you want a story that will change your life, Chiron's bookshop is where you go. For those lucky enough to grace its doors, it's a glimpse into a world of deadly bargains and powerful, magical books. For Cassandra Fairfax, it's a reminder of everything she lost, when Chiron kicked her out and all but shuttered the shop. Since then, she's used her skills in less . . . ethical ways, trading stolen books and magical readings to wealthy playboys looking for power money can't buy. Then Chiron dies. And if Cassandra knows anything, it's the bookshop must always have an owner. To restore the shop, she'll need the help of Lowell Sharpe, a rival bookseller who is everything Cassandra is not – and knows it, too. But as she is plunged into a world of unscrupulous collectors, deadly ink magic and shady societies, a dark force threatens to unravel the bookshops entirely . . .

Age of Myth inaugurates another six-book series set in Elan. Since time immemorial, humans have worshipped the gods they call Fhrey, truly a race apart: invincible in battle, masters of magic, and seemingly immortal. But when a god falls to a human blade, the balance of power between humans and those they thought were gods changes forever. Now only a few stand between humankind and annihilation: Raithe, reluctant to embrace his destiny as the God Killer; Suri, a young seer burdened by signs of impending doom; and Persephone, who must overcome personal tragedy to lead her people. The Age of Myth is over. The time of rebellion has begun.

A riveting collection of one artist’s many approaches to esolangs—esoteric programming languages—showcasing the form’s limitless artistic potential. In Forty-Four Esolangs, Daniel Temkin challenges conventional definitions of language, code, and computer, showing the potential of esolangs—or esoteric programming languages—as pure idea art. The languages in this volume ask programmers to write code in the form of prayer to the Greek gods, or as a pattern of empty folders, or to type code in tandem with another programmer, each with one hand on the keyboard, their rhythm and synchrony signifying computer action. Temkin includes languages written over the past fifteen years, along with some designed especially for this book. Other pieces are left as prompts for the reader to simply consider or perhaps to implement on their own. Esolangs are a collaborative form. Each language is a complete world of thought, where esoprogrammers build on the work of esolangers to make new discoveries. The language Velato, for instance, asks programmers to write music as code; while the language creates constraints for the programmer, each programmer brings their own coding and musical sensibility to the language. Other pieces are pure poetic suggestion in the legacy of Yoko Ono’s event scores. These ask the programmer to, for example, follow the paths of the clouds over a single day and construct a language in response that uses those movements as code. Just as Ben Vautier claimed everything is art, this book blurs the lines between computation and everything else.

Cinnamon Jones dreams of stepping on stage and acting her heart out like her famous grandparents, Redwood and Wildfire. But at 5'10" and 180 pounds, she's theatrically challenged. Her family life is a tangle of mystery and deadly secrets, and nobody is telling Cinnamon the whole truth. Before her older brother died he gave Cinnamon "The Chronicles of the Great Wanderer," a tale of a Dahomean warrior woman and an alien from another dimension who perform in Paris and at the 1893 Chicago World's Fair. The Chronicles may be magic or alien science, but the story is definitely connected to Cinnamon's family secrets. When an act of violence wounds her family, Cinnamon and her theater squad determine to solve the mysteries and bring her worlds together.

Throughout the deepest reaches of space, a crew rebuilds beautiful and broken-down structures, painstakingly putting the past together. As new member Mia gets to know her team, the story flashes back to her pivotal year in boarding school, where she fell in love with a mysterious new student. Soon, though, Mia reveals her true purpose for joining their ship—to track down her long-lost love. An inventive world, a breathtaking love story, and stunning art come together in this new work by award-winning artist Tillie Walden.