There were three little knurled winding wheels, in fact, and each of them turned one of the three shorter hands, which moved around the dial in a series of smooth satisfying clicks. You could arrange them to point at any of the pictures, and once they had clicked into position, pointing exactly at the center of each one, they would not move. The fourth hand was longer and more slender, and seemed to be made of a duller metal than the other three. Lyra couldn’t control its movement at all; it swung where it wanted to, like a compass needle, except that it didn’t settle.
