A slim tool punched through the cast-iron grillwork that covered it, and a thread of fiber followed.

The thread followed the enchanted path on north.

Her own thread followed the fractal thread from the nose-point and came to a tiny bug-world hidden there.

All right, Spock, you've found a thread follow it.

But for now, she had some slim threads to follow.

Then, you can push it all the way through the leather and the thread will follow it.

Until I could choose one thread to follow, I couldn't swallow any of them.

This thread follows the basic device Rawls never abandoned, namely the 'priority of the right'.

The northern thread follows the course of the modern road and railway to Kuqa and Turpan.

Not that the resulting tangle doesn't have threads worth following.