Lucy laughed, because of course. She tugged at the lights to free them. A quick yank—an easy fix. The lights came loose with an eager clack, and the plug popped from the wall with a small electric sigh. Somewhere between the tug and the catch, the hex key slipped from her fingers.

The hex key fell through the thin gap between slats and vanished.

Then she noticed the dent.

She took a breath. The hex key was three centimeters long. The gap behind the bed appeared to be, at most, five centimeters wide. She opted to tilt the bed frame forward an inch to create more room. It was a delicate maneuver—tilt enough to slide the phone’s torch along, but not so much that the entire structure collapsed.

She fetched the little hex key that came with the kit, a teaspoon of steel in her palm. She tightened one bolt, counted it mentally, and then another. The bolts yielded with a soft metallic whisper. When she reached the fourth bolt, her elbow struck the bundle of fairy lights she’d draped along the headboard earlier that week. They slithered down like a string of captive stars, tangling around the ladder and the lamp and her ankles.