One thread starts it.
A small pull takes up the slack. The steel needle lifts a fold of felt; the cotton thread presses softly into its edge.
The next piece meets it.
The path settles into place. The crew pulls a small zipper along its seam, joining the next section with a little resistance and a soft finish.
A door opens.
With the path connected, the crew opens the folded felt door on its sewn cloth hinge. The next step becomes possible.
Ready for what comes next.
The crew settles beside a connected path. A small shared reaction gives the scene personality before it returns to rest.