The Borderlands
The borderlands are where the Shimmerlands stop shimmering.
The singing grass falls silent first. Then the colors go, hedge by hedge — not to night-time darkness, but to that photograph-grey, mile after mile of world that has stopped counting. On the far horizon stands a shape you feel in your stomach before your eyes sort it out: a citadel of black briars, wound around a hill like a crown of thorns the size of a town. A single window in it glows the violet of the storm that started everything.
“Don't look at it long,” murmurs Sera. “She feels looking.”
That's when the wind shifts, and the howls go up — behind you, spread wide, herding-pattern. Wolves. Growler flattens out and flies, but she's tired and carrying three, and the grey land below offers exactly two kinds of cover: a dead hollow oak on a rise, big enough to hide even a unicorn — or, glimmering at the bottom of the valley like a crack in a window, a storm-scar. A rift. You can smell your own world through it: cut hay, rain, home.
“Those go where they please, not where you please!” Sera warns — but the howls are closing, and Growler can't outrun them, and you have about four seconds.