Magic has a price. But someone else will pay. Every time a spell is cast, a bit of bramble sprouts, sending up tangling vines, bloody thorns, and threatening a poisonous sleep. It sprouts in tilled fields and in neighbors' roof beams, thrusts up from between street cobbles, and bursts forth from sacks of powdered spice. A bit of magic, and bramble follows. A little at first, and then more—until whole cities are dragged down under tangling vines and empires lie dead, ruins choked by bramble forest. Monuments to people who loved magic too much. In paired novellas, award-winning authors Tobias Buckell and Paolo Bacigalupi explore a shared world where magic is forbidden and its use is rewarded with the axe. A world of glittering memories and a desperate present, where everyone uses a little magic, and someone else always pays the price. Magic has a price. In Khaim, that price is your head if you're found using it. For the use of magic comes with a side it creates bramble. The bramble is a creeping, choking menace that has covered majestic ancient cities, and felled civilizations. In order to prevent the spread of the bramble, many lose their heads to the cloaked executioners of Khaim. Tana is one of these executioners, taking the job over from her ailing father in secret, desperate to keep her family from starvation. But now her family has been captured by raiders, and taken to a foreign city. So Khaim's only female executioner begins a quest to bring her family back together. A bloody quest that will change lives, cities, and even an entire land, forever. A quest that will create the legend of The Executioness.

Magic has a price. But someone else will pay. Every time a spell is cast, a bit of bramble sprouts, sending up tangling vines, bloody thorns, and threatening a poisonous sleep. It sprouts in tilled fields and in neighbors' roof beams, thrusts up from between street cobbles, and bursts forth from sacks of powdered spice. A bit of magic, and bramble follows. A little at first, and then more—until whole cities are dragged down under tangling vines and empires lie dead, ruins choked by bramble forest. Monuments to people who loved magic too much. In paired novellas, award-winning authors Tobias Buckell and Paolo Bacigalupi explore a shared world where magic is forbidden and its use is rewarded with the axe. A world of glittering memories and a desperate present, where everyone uses a little magic, and someone else always pays the price. In the beleaguered city of Khaim, a lone alchemist seeks a solution to a deadly threat. The bramble, a plant that feeds upon magic, now presses upon Khaim, nourished by the furtive spellcasting of its inhabitants and threatening to strangle the city under poisonous vines. Driven by desperation and genius, the alchemist constructs a device that transcends magic, unlocking the mysteries of bramble s essential nature. But the power of his newly-built balanthast is even greater than he dreamed. Where he sought to save a city and its people, the balanthast has the potential to save the world entire—if it doesn't destroy him and his family first.

Khaim, The Blue City, is the last remaining city in a crumbled empire that overly relied upon magic until it became toxic. It is run by a tyrant known as The Jolly Mayor and his devious right hand, the last archmage in the world. Together they try to collect all the magic for themselves so they can control the citizens of the city. But when their decadence reaches new heights and begins to destroy the environment, the people stage an uprising to stop them.