Yumi and the Nightmare Painter

From the #1 Kickstarter campaign of all time—#1 New York Times bestselling author Brandon Sanderson adds to his Cosmere universe shared by Mistborn and The Stormlight Archive with a new standalone novel especially for fans of Asian pop culture. Illustrated by Aliya Chen.
There is a world. One of endless night, surrounded by an even deeper darkness. Filled with nightmares come to life, twisted shapes that slink to windows and ease open doors, sliding across floors to look down on helpless faces.
There is another world. A bright world, so bright it burns. Filled with stacked stones that call forth miracles, raised by callused hands that tremble in their work, drained with each stone lifted, settled, lifted again.
Between these worlds two souls connect. Collide. Entwine.
A bridge. A path.
A road to both worlds changing forever.
Yumi has spent her entire life in strict obedience, granting her the power to summon the spirits that bestow vital aid upon her society—but she longs for even a single day as a normal person. Painter patrols the dark streets dreaming of being a hero—a goal that has led to nothing but heartache and isolation, leaving him always on the outside looking in. In their own ways, both of them face the world alone.
Suddenly flung together, Yumi and Painter must strive to right the wrongs in both their lives, reconciling their past and present while maintaining the precarious balance of each of their worlds. If they cannot unravel the mystery of what brought them together before it's too late, they risk forever losing not only the bond growing between them, but the very worlds they've always struggled to protect.
Note from Brandon:
Even for a compulsive planner like me, sometimes a story emerges like magic. Unexpected, unprompted. You build an outline in days, craft worlds during a compulsive daydream, and develop characters with a burst of imagination like the brief flash of a firework.
That was Yumi and the Nightmare Painter for me. The unanticipated story of two people who find one another.
May your dreams live as mine sometimes do.